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produced in both nitrogen and oxygen, the hruth discharge only gives
nitrogen lines, and is not formed at all in pure oxygen ; a trace of nitro-
gen entering the tube is sufiBcient to reproduce the light and its peculiar
hnes. The same is true in regard to the luminous glow observed when
electricity is discharged between two points. At the same time the latter
spectrum is still much fainter than that of the brush. It is characteristic
of these lines that they especially occur in the most refrangible part of
the spectrum. This seems due to the mtAch lower temperature in the
brush and glow discharge, as compared to the discharge in a spark.
By introducing in the circuit of a coil a wet strins; four meters long,
Schimkow made the nitrogen spectrum of a Geissler-tube appear pre-
cisely like the brush spectrum : the yellow lines had been weakened
much more than the violet ones ; at a low temperature, therefore, nitro-
gen seems especially to emit the most refrangible rays, harmonizing with
the observation of von Waltenhofen, according to which the least refran-
gible rays are fir»t extinguished when air is successively more and more
rarefied. Thus the brush and glow are due to the luminosity of nitrogen
at a temperature below that at which oxygen becomes luminous ; and
furthermore they consist principally of the more refrangible rays. — Fogg,
Ann,, 1866, cxxix, 508-520; L'Institut, 1867, p. 55. o. h.


1. Note on a new genus of fossil Crustacea ; by F. B. Mekk. — In the '
last number of this Journal, p. 257, 1 mentioned having seen in ^ The
Reader," a notice of a paper by Mr. Henry Woodward, read before the
Geological Society of London, in which he proposed to establish a new
genus Prestwiehia^ for the reception of some of the species generally re-
ferred to Belinurus, but differing from the types of that genus in having
the body segments anchylosed. The abstract of Mr. Woodward's paper,
mentioned by me, was unaccompanied by figures or diagnosis, and no
particular species were cited, but the fact that our Illinois fossil has its
body segments anchylosed, and agrees very nearly in its general appear-
ance with a part of the species referred by English authors to Belinurus,
led me to refer it to the new genus Prestwichia, Since that time, I
have seen Mr. Woodward's interesting paper as published in the Quar-
terly Jonraal of the Geological Society, vol xxiii, No. 89, p. 28, with ex-

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Mineralogy and Geology, 395

cellent figures, both of the typical Belinurus and the new genus Prest-
wiehia. From these figures and the accompanying remarks, it becomes
evident that certain differences between the previously published figures
of the type upon which the genus Preaiwichia is founded and our Illi-
nois fossil, and which were noticed by us in the remarks accompanying
the description of the Illinois species as being probably of more than
specific importance, if not due to some accidental imperfection of the
specimens figured by Prestwich. really exist, and consequently forbid the
reference of our species to this new genus. As it also differs upon quite
as important characters from the genus Belinurus, as now restricted and
* clearly illustrated by Mr. Woodward, it becomes necessary to propose for
its reception a third genus, holding a somewhat intermediate position
between Belinurut and Prestwichia,

For this new genus I would propose the name JSuproopSj in allusion to
the anterior position of its eyes. This form is at once distinguished from
the restricted genus Belinurus, by its anchylosed abdominal segments,
and the anterior position of its eyes, as well as by the more oval or sub-
circular outline of its abdomen. From Prestwichia, with which it more
nearly agrees in general form, us well as in its anchylosed segments, it
differs remarkably in having the area enclosed by its eye-ridge (glabella)
comparatively small, and of a quadrangular form, with the eyes situated
far forward at its anterior lateral angles. On comparing these characters
of the central region of its head with the corresponding parts of Prest-
wichia, as illustrated by Mr. Woodward, it will be seen that the latter
differs in having the glabella proportionately much larger, and trans-
versely elliptic in outline, with the eyes widely separated and placed far
back at its lateral extremities. It also has within this large elliptic area
a smaller crown-shaped one not seen in Euproops, but corresponding in
size and general appearance with that bearing the eyes at its anterior
lateral angles in the latter type.
March 29th, 1867.

2. Geological Survey of Illinois, A. H. Worthbn, Director. Volume
n, Paleontology, xix, and 470 pp., royal 8vo, with 60 plates and 80
wood-cuts. Springfield, 1866. Published by authority of the Legislature
of Illinois. — This important and beautifully illustrated work, consists, be-
sides the Introduction, of three Sections, as follows :

Section I. — *• Descriptions of new species of Vertebrates, mainly from
the Subcarboniferous limestones and Ck>al Measures. By J. S. Nswbkrrt
and A. H. Worthkn.

" Remarks on the occurrence of Fossil Fishes in Illinois. By A. H,

^* Supplement to descriptions of Vertebrates, consisting of a description
of a new genus, and species of Reptiles from the Coal-meaaurea. By
Pro£ Edw. D. Copk.

Section II. — " Descriptions of Invertebrates from the'^Carboniferous
ayateoQ. By P. B, Mkbk and- A. H. Worthen.

** Supplement to the descriptions of Invertebrates, consisting of the
descriptions of Polyzoa from the Paleozoic rocks. By H. A. Proot, M.D.

Section III.— "Report on the Fossil Plants of Illinois. By Leo

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896 Scientific Intelligence.

From the IntrodnctioD we learn that :

"The number of species of all kinds, illustrated and described, in the
Report, is about 325, of which nearly 800 were discovered or first made
known to science through the agency of the Illinois Geological Survey.
Of these 325 species, 50 are plants, 156 invertebrate animals, and 119 ver-
tebrates. Altogether they represent 115 genera, 25 of which have been
established by parties connected with the survey. Of these genera 18
are plants, 67 invertebrates, and 30 vertebrates — the latter of which^
with one exception (a Batrachian\ being all fishes. Of the 115 genera
represented, 81 are more or less fully characterized, and most of them
illustrated in thiq volume.'^

From the cursory examination we have been enabled to make, we
find many important additions to our knowledge of American Paleontol-
ogy in this volume. At present we can only notice a few of them.

Mr. Worthen states that the fossil fishes abound in four horizons —
usually limited to a single stratum, rarely more than a few inches in
thickness. In the beds which form the base of the Carboniferous sys-
tem in Illinois, these remains are comparatively rare ; but in the upper
strata they become exceedingly abundant The lowest bed occurs in the
upper part of the Burlington limestone. It is a stratum of brownish-
gray rock, from four to six inches thick, in which the teeth and spines of
Dshes are imbedded in great numbers. It was first observed at Quiucy,
Illinois, but was afterwards identified on Honey creek in Henderson
county and at Augusta in Iowa, nearly one hundred miles away from the
first named locality. The second JUh bed occurs fiftv or sixty feet higher,
in the series near the base of the quarry rock of the Keokuk group.
The third, in ascending order, is found in the upper part of the Keokuk
limestone. The fourth is situated at the junction of the lower limestone
in the Chester group with the green shales above. All these beds be-
long to the Mountain limestone or Subcarboniferous period. In the Coal-
measures, the remains of fishes again become more rare, in Illinois. **0f
the 118 species, described and illustrated in this volume, 16 are from the
Coal-measures, 17 from the Chester limestone, 18 from the St. Louis
limestone, 49 from the Keokuk limestone, 14 from the Burlington lime-
stone ; 3 from the Kinderhook group, and 1 from Devonian Strata,''
(p. 16). This is the first memoir in which any large number of the
paleozoic fishes of America have been described ; and as the species are
well figured it will constitute the foundation on which all subsequent
investigations in this department must be conducted. Next follows an
interesting description of a new fossil Batrackian, discovered by Mr. Jo-
'iCph Even, near Morris, Grundy county, Illinois, in a bed near the base
*^of the Coal-measures.

In Section II will be found a great deal of information bearing on
the classification of the Crinoidea ; especially as regards such genera as
Actinocrinu9y Cyathocrinus and Poteriocrinus the relations of which are
here discussed at length. The new genus Strotocrinu$ (M. & W.)
has the formula of Actinocrinus in the lower part of the body, but is
distinguished by the remarkable structure of the upper portion, which is
greatly expanded and forms a ten rayed horizontal disc, the plane of
which is at right angles to the vertical axis. The interior of S. regalis^

Digitized by


MiTuralogy and Geology. 897

and some other species is provided with a peculiar, convoluted intenia]
plate, resembling a shell of a Bulla or Scaphander^ placed with its
longer axis so as to coincide with that of the body of the crinoid. This
is illustrated by a wood-cut on p. 191.

The genus Steganocrinua has also the structure of Aetinocrinui in the
lower part, but with : ** Rays, from the third primary radial pieces, form-
ing greatly produced, free arm-like appendages, either bifurcating or sim-
ple, which are covered their entire length above by small plates, and
provided on each side with a row of alternating true arms. Vault with
.a subcentral proboscis.'* These arm-like appendages are tubulifi', with the
ambulacral orifices arranged along the sides,— opening out into the
grooves of the true arms.

On page 220 there are some figures illustrating the wonderful struc-
ture of the vault of Gilbertsocrinus, It is there shown that this genus
is identical with Trematocrinus (Hall), Ooniasteroidocrinus (Lyon and
Casseday), Rhodocrinus (Miller) pars, (as understood by some naturalists),
and Ollacrinus (Cumberland). This latter name has priority over all
others, but its author did not characterize the genus. The vault exhibits
fine slender lobes, which are branched at their extremities. These have
been mistaken lately for arms,^ but M. and W. have shown that the
true arms are situated in the re-entering angles between them. There
are numerous important improvements in the classification of paleozoic,
genera of Echinodermata suggested in this work, which can only be un-
derstood by consulting the very instructive observations and figures.

An interesting fossil belonging to the Xiphorura is doubtfully placed
in the genus BdlinuruSy but Mr. Meek has informed us that he now con-
siders it distinct from that genus and also from Prestwickia to which he
afterwards thought it might be referable (this vol. ante, p. 257^. As it
will be noticed elsewhere in this Journal, we need not allude to it further
here. We may be permitted, however, to remark on the afSnities of the
Xiphorura and the Eurypterida that the beautiful specimens of Euryp-
iertu figured by Nieskowski in the " Archiv fur die Naturkunde Livland,
&o.y^ 1859, have the six anterior segments of the body sculptured as in
Pteriyotut ; but the posterior six are not so marked, unless indeed ob-
scurely along the median line. These latter six have their posterior an-
gles product backward, to form short angular spines similar to those in
the lateral margins of the abdomen of Limulus. If then we examine
the inner surface of the cephalo- thorax of Limulus^ we shall find there,
indications of six or seven anchylosed segments, all with the scale-like
sculpture of Pterygotus, These markings are not seen on the outside,
and, though the character at first sight may not seem important, yet it
will strongly impress many observers with the idea that we nave buried, as
it were, in the buckler of Limulus the anterior segments of Eurypterut,
The species figured by Nieskowski is clearly not E. remipes as he supposes.

Mr. Lesquereux gives, p. 463, a table of the number of species of plants
mentioned in his Keport. The following are the general results :

* John Rofe, £ac[., F.G.S., has figured (Qeologiod Maganne, vol il pi. 8) an
English tpecimeD wiUi portions of these appendages which he maiDtains to be the
remains of the arms. They are evidently, however, merely projecting lobes of the
body, the formations of which are not yet understood.

Am. Jena. Sci.— Sbcovd Sebibs, Vol. XLIII, No. 139.~Mat, 1867.

Digitized by


398 Scientific Intelligence.

1. Whole number of species in Illinois, 120

2. Number of new species in Illinois, 37

8. Species found in Illinois not publisbed before, ' 60

4. Species in the catalogue not found in Illinois, 219

5. Whole number in the catalogue, 280

6. New species in the same, 146

This Report was drawn up in 1860; since then, other species have been
collected, which will be described in future publications of the Survey.

The tw« volumes of the Geology of Illinois, which have been issued,
establish for at least one Scientitic Institution of that noble State, a
very high character. The Paleontology is a first class work, equal to
the best that has been published by any geological survey, and where
the fossils are well worked out in a country, we may be sure that the
physical structure is also correctly understood.

The principle, that every nation should contribute something toward
the general advancement of knowledge (not merely by the dissemination
of what was previously known, but by assisting in the discovery of those
truths which, although existing in nature, have remained unknown to
man from the beginning), is now recognized by all enlightened communi-
ties to be a sound one. The people of the State of Illinois have made
an effort in that direction which, under the wise management of their
able State geologist, has been highly successful, and creditable to all the
parties concerned. s. b.

8. On the occurrence of Eozoon in the Primary Rocks of Baslem Ba-
varia; by Prof. GuMBEL. (Ber. Ak, MUnchen, 1866; Q. J. Geol. Soc,
xxii, 23.) — A new species of Eozoon^ the Eozoon Bavaricum^ has been
discovered by Prof. Gumbcl in a rock consisting of a granular aggrega-
tion of calcite, serpentine, and a white hornblcndic mineral, supposed to
be of Hurouian or Cambrian age. The specimens examined were from
near Wunseidel and Tlnersheim, and between Hohenberg and the Stein-
berg, especially the last-named locality. It exhibits — (l.) A thin band
almost entirely calcareous, and traversed by a network of straight lines,
or, when treated with acid, divided by band-like ribs into irregular cell-
like spaces, the calcite filling which is seen to be granular. (2.) Thicker
calcareous portions abounding in tufts of fine tubes, exactly as in Eozoon ;
these tubes end at the serpentinous portions (S.V which have generallj
the same form as in the Eozoon from Steinhag before described, but are
much smaller. In decalcified examples they may be seen to possess the
same vaulted margins as Eozoon; their breadth averages *1 mm. and
the diameter of the tubes '01 mm. Generally these serpentine bands
pass into an adjoining portion ^4.), of one-half the width, or less, made
up of very much twisted lamellse, consisting of serpentine or a whitish
mineral, and possessing highly vaulted and deeply channelled outlines.
Prof. Giimbel considers that on the whole these characters undoubtedly
prove the affinity of this more recent and very much smaller form to the
group Eozoon; but as the last-mentioned structure (4.) differs from what
has been observed in Eozoon Canadense^ he gives it the distinctive name
of Eozoon Bavarirum, Prof. GUmbell makes out, with more or less prob-
ability, that the Eozoon occurs in the pargasite of Pargas, Finland, the
Coccolite-limestone of New York, at Tunaberg, Boden in Saxony, and
Hodrisch in Hungary.

Digitized by


Mineralogy and Geology, 309

4. A Catalogue of Official Reports upon Geological Surveys of the
United States and British Provinces, — In arranging a set of American
Geological Reports in the Library of Yale College, the following cata-
logue became necessary ; and it is here published in the hope that it may
be of service to geologists.'

Part IL — States and Tbrritoribs wbst of the Mississippi Rivbr
AND British Provikces.


1866. ffenry H, Eames, 1st Ann. Rep., Saint Paul, 8vo, 28 pp.

^ Charles Whittlesey^ Rep. on Mineral Regions, Cleveland, 8 vo, 64 pp.


1858. J. Hall and J, D. Whitney, Final Rep., vol. I, Albany, 8vo, 724

pp., 29 pi., 2 sect., map.

1859. J. Hall and /. D, Whitney, Suppl., vol. I, Albany, 8vo, 4 pp.

1860. ** " " 8vo, 94 pp., 8 plates.
I860. "^ " Ann. Rep., Des Moines, 8vo, 75 pp.
1861.* J, Hall, Prelim. Notice of New Crinoidea, Albany, 8vo, 18 pp.

1867. C, A. White, Ist Ann. Rep., Des Moines, 8vo, 4 pp.

Iowa, Wisconsin and Illinois.
1844. D. D. Owen, Rep. to Treas. Dept., Washington, 8vo, 191 pp.»
16 pi., 4 maps.

Wisconsin and Iowa.

1848. D. D, Owen, Rep. on Chippewa Land Dist., Washington, 8vo»
184 pp., 28 pi., 14 sect., maps.

Wisconsin, Iowa and MiNNstoTA.
1852. 2>. D. Owen, Final Rep. (U.S.), Philadelphia, 4to, 688 pp.,
27 pi., 16 sect., map.


1855. G, C Swallow, 1st and 2d Ann. Rep., Jefferson City, 8vo, 207,

and 288 pp., 82 pi., 5 maps.

1867.* G. C. Swallow, ^d Ann. Rep., «

1859.* " 4th " " Jefferson City, 8vo, 14 pp.

1861.* " 6th " " " " "

« « Geol. Rep. on S. W. Branch Pacific R. R., St

Louis, 8vo, 98 pp., map.

1866. Benj, F, Mudge, 1st Ann. Rep., Lawrence, 8vo, 66 pp.
" 6^. C, Swallow, Prelim. Rep, Lawrence, 8vo, 198 pp.


1868. D. D, Owen, 1st Rep., Little Rock, 8vo, 256 pp.
1860. " 2d *' Philadelphia, 8vo, 488 pp.

' Of those Reports marked with an * one copy is needed at the Library of Yale
College ; and also one copy of any Report not included in the list : penoni haviog
them to dispose of are requested to notify the Librarian.

Digitized by


400 Scientific Intelligence,


1853. Randolph B. Many, Rep. to War Dept. on Red River of La.,
(Geolo^ by E. Hitchcock and G. G. Shumard ; Paleontology,
by B. F. Shuniard,) 8vo, 320 pp., 66 sect, and plates.


1859. B, F. Shumardy Ist Ann. Rep., Austin, 12mo. 17 pp.


1809. If, LevM and W, dark. Expedition across American Continent
in 1804-^, by order United States Government, Philadelphia,
8vo, 2 vols. (London, 4to, 1814, and 8vo, 3 vols. 1817), maps.

1810,* Z, M. Pike, Expedition in western Territories in 1806-7, by or-
der U. S. Government, Philadelphia, 8vo, maps, (London, 4to,

1823.* Stephen H, Long, Expedition from Pittsburg to Rocky Mts., in
1819-20, (War Dept.) (Compiled by Edwin James,) Philadel-
phia, 8v6, 2 vols. 503, and 442 pp. Atlas, (London, 8yo, 3
vols. 1823).

1824.* S. H, Long, Exped. to source of St. Peters River, in 1823, (War
Dept) f Geology by Wm. H. Keating,) Philadelphia, 8vo, 2 vols.,
maps, (London, 8vo, 2 vols. 1825).

1835. Q, W, Jreatherslonhaugh^ Rep. on Elevated Country between

Missouri and Red Rivers, Washington, 12 mo, 97 pp.

1836. G. W, Featherstonhaugh, Rep. on Geo!. Reconn., vta Wisconsin,

to Cotean de Prairie, Washington, 12mo, 168 pp.
X843. /. N, Nicollet, Rep. to illustrate Map of Hydrographioal Basin

of Mississippi River, Washington, 8vo, 170 pp.
1845. John C. Fremont, Exped. to Rocky Mts. in 1862-4, (War Dept.),

(Paleontology by James Hall), Washington, 8vo, 693 pp.
1848. W, H, Emory, Exped. from Fort Leavenworth to California,

(War Dept.), includes Reports of J. W. Albert, P. S. Cooke,

and A. R. Johnson^ (Paleontology by J. W. Bailey), Washing-
ton, 8vo, 614 pp., maps.
" A, Wielizenue, Rep. of tour to North Mexico in 1846-7, with

Col. Doniphan's Expd., Washington, 8vo, 141 pp., maps.
1852. Howard Stansbury, Exped. to Great Salt Lake^ (War Dept),

(Geology and Paleontology by James Hall,) Washington and

Philadelphia, 8vo, 487 pp., maps.
1863. L. Sitgreaves, Exped. down Zuni and Colorado Rivers, (War

Dopt), Washington, 8vo.
1856. G, K, Warren, Exped. to Rocky Mts. in 1866, (Geology by F.

V. Hayden), Washington, 8yo.
1867. W, If, Emory, Rep. on U. S. and Mexican Boundary Survey,

vol. I, (Geology by C. C. Parry, A. Schott, W, H. Emory, and

James Hall ; Paleontology by James Hall and T. A. Conrad),

Washington, 4to, 21 plates.
1859. W, H, Emory, Rep. on U. S. and Mex. Boundary, vol. II, Botany

and Zoology ; no Geology, Washington, 4to, plates.
1855. Rep, on Facijic Railroad Exploration^ (War Dept.), vol. I, (Geol*

ogy by George Gibbs), Washington^ 4to.

Digitized by


Mineralogy and Geology. 401

1855. lUp. on Pacific R. R. ExpUyr., /War Dept.)t vol II, (Geoloffj

by James Schiel and Wm. P. Blake; Paleontology by J. Scbiei
J. W. Bailey, and W. P. Blake), Washington, 4to. plates.

1856. Rep. on Pacific R. R. JSxplar., (War Dept), vol. Ill, (Geology,

by W. P. Blake, and Jules Marcou ; Paleontology oy James
Hall,) Washington, 4to, plates.
♦* Rep. on Pacific R. R. Explor., (War Dept) , vol. IV, Botany ; no
Geology, Washington, 4to, plates.
• « Rep. on Pacific R. R. Explor., (War Dept), vol. V, (Geology by
W. P. Blake ; Paleontology by L. Agassiz, T. A. Conrad, J. W.
Bailey, and Geo. C. Schaffer,) Washington, 4U>, plates.

1857. Rep. on Pacific R. R. Exphr., (War Dept), vol. VI, (Geology by

J. 8. Newberry ; Paleontology by T. A. Conrad), Washing-
ton, 4to, plates.
1857. R^. on Pacific R.R. Explor., (War Dept), vol. VII, (Geology
by Thos. Antisell ; Paleontology by T. A. Conrad), Washing-
ton, 4to, plates.

1857. Rep. on Pacific R. R, Explor., (War Dept), vol. VIII, Zoology ;

no G^]<^^ Washington, 4to, plates.

1858. Rep. on Pacific R. R. Explor., (War Dept), vol. IX, Zoology ;

no G^l(^y, Washington, 4 to, plates.

1859. Rep. on Pacific R. R. Explor., (War Dept), vol, X, Zoology ;

no Geology, Washington, 4 to, plates.
1855. Rep. on Pacific R. R. Exptor.^ (War Dept), vol. XI, Literature
of Surveys, and maps ; no Geology, Washington, 4to.

1 860. Rep. on Pacific R. R. Explor^ (War Dept), vol. XII, Parts I and

n. Botany and Zoology ; no Geology, Washington, 4to, plates.

1862. F. V. Haydcn^ Rep, on Geology of Upper Missouri Region, Phil-
adelphia, 4to, 218 pp., map.

1865. F. B. Meek and F. V. Hayden, Rep. on Paleontology of the
Upper Missouri, Part I, (Smithsonian Cont) Washington, 4to,
135 pp., 5 plates.


Orbgok and Northbrk California.

1848. J. C. Fremont^ Rep. upon Upper California, Washington, 8vo.
1850. Jamee D. Dana^ Rep. on Geology of U. S. Explor. Exped., in

1838-42, New York, 4to. Atlas.
1850. P. T. Tyson and others. Reps, to War Dept, Washington^ 8vo,

128 and 37 pp., 12 maps and sections.
1854. Wm. P. Blake, Rep. to War Dept., Washington, 8vo, 80 pp.


1853. John B. Traek, Ist Ann. Rep. Geol. Sierra Nevada, f, 8vo^

1854. /. B. Tratk, 2d Ann. Rep. Geol. Coast Mts. and part of S. Ne-

vada, f, 8vo, 95 pp.

1855. /. B. Trash, 3d Ann. Rep. Geol. Coast Mta., Sacramento, Svo,

93 pp.

Digitized by


402 Scientific Intelligence.

1856. /. B. Trask, 4th Ann. Rep. Northern and Southern Cal., Sacra-
mento, 8vo, 66 pp.

1855. W. P. Blake, Rep. to Coast Survey on Geology of Cal., Wash-
ington, 22 pp., 4to.

1861. Josiah D. Whitney, Address to Legislat, on Survey, San Fran-

cisco, 12 mo, 50 pp.

1862. J, D. Whitney, Letter to Governor (Rep. of Progress), San Fran-

cisco, 8vo, 7 pp.
1862.^ J, D, Whitney, Address to Legislat., on Survey, San Francisco,
12mo, 3d pp.

1863. /. D, Whitney, 2nd Ann. Rep., San Francisco, 8vo, 12 pp.
1^64. J. D, Whitney, Rep. Paleontology, vol. I, Philadelphia, 8vo, 243

pp., 32 pi. (Carboniferous and Jurassic Fossils by F. B. Meek ;
Triassic and Cretaceous, by W. M. Gabb.)

1865. J, D. Whitney, Rep. Geology, vol. I, Philadelphia, 8vo, 498 pp.,

10 plates.

1866. /. D, Whitney, Rep. Paleontology, vol. 11, part I, Philadelphia,

8vo, 38 pp. (Tertiary Invertebrate Fossils by W. M. Gabb.)
1866. /. D, Whitney, Letter to Governor on Survey, San Francisco,
8vo, 14 pp.

Calipormia and Arizona.

1861. Joseph C, Ives, Rep. on Colorado River, Washinfi;ton, 4to, plates,
(G^Iogy and Paleontology by J. S. Newberry.)

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