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3. p. 85.
Todd, Samuel. Gravel pits of Topsfield. Proc. of Essex Institute, Vol.
3. P-I5-
Topsfield, Copper Mines of. Proc. of Essex Institute, Vol. 6, p. 47.
Tracy, C. M. Notice of a singular erratic in Lynn known by the name
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APPENDIX 411
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INDEX
Acmite, 238.
Actinolite, 238,
Actinolitic quartz, 237.
JEgirine, 238.
^girine tinguaite, 209. ,
Agassiz boulder, 344.
Ainigmatite, 238.
Akerite, 178, igo.
Albite, 245.
Albite and ortlioclase intergrowths, 245.
Alkali hornblende, 238.
AUanite, 241.
Almandite garnet, 241.
Amazon stone, 245.
Amesbury, 167, 266, 302.
Analcite tinguaite, 209.
Andalusite, 246.
Andover, 98, 149, 168, 170, 173, 271, 272
307-
Ankerite, 249.
Ann, Cape, 328.
Annite, 242.
Anorthite, 245.
Anorthoclase, 245.
Antimony, Gray, 233.
Apatite, 249.
Aporhyolite, 214, 236, 240, 244.
Areas of land and water, 393.
Arfvedsonite, 238.
Arkose, 97, 106, 254.
Arsenopyrite, 233,
Artesian well, 83.
Asbestos, 133.
Asbestus, 238.
Asteracanthion, 369.
Astrophyllite, 241.
Augite, 237,
Augite, Brown, 238.
Augite hornblende gabbro, 173.
Augite syenite, 42, 178, 194.
Ayer's Village, 171.
Azurite, 249.
Baker's island, 146.
Bald hill, Beverly, 193.
Bald Pate hill, Georgetown, 314.
Ballardvale, 22.
Baltimorite, 246.
Bars, 45.
Bars of sand, 62, 66.
Basanite, 237.
Bastite, 246.
Bays, 45.
Beaches, 58, 64, 66, 70. 82, 295, 318.
Beaches, Inland, 272.
Beacon ledge, 67.
Beaver brook, 28.
Beaver pond, Beverly, 265.
Bed-rock outcrops, 76, 399.
Beverly, 22, 51, 60, 153, 174, 190, 201, 265,
268, 276, 280, 327, 328, 358, 374.
Bibliography, 406.
Biotite mica, 241.
Biotite tinguaite, 205.
Black brook, 28.
Boden's rock, 57.
Bog-butter, 250.
Bog iron, 234.
Bog manganese, 234.
Bogs, Quaking, 284.
Bomite, 233.
Boston brook, 28.
Bostonite porphyry, 202.
Boulder- till, 277.
Boulders, 78, 113, 120, 124, 128, 137, 156,
320; 326, 328, 330, 334, 336, 343, 344.
Bowditch's ledge, 57.
Boxford, 88, 90, 109, 132, 136, 284, 308, 314.
Bradford, loi.
Breakheart hill, Saugus, 76.
Brick making, 357.
Bronze siderite, 249.
Bronzite, 238.
Brown hematite, 234.
Brown ochre, 234.
413
414
Bnicite, 234.
Bull brook, 28.
Byfield, 166, 271,
295-
Cairngorm stone, 237.
Calc spar, 249.
Calcite, 249.
Cambrian rocks, 33, 34, 83, 106, 178, 182,
186, 229, 380.
Canal, Early, 335.
Cancrinite, 245.
Castle hill, Salem, 108.
Castle neck, Ipswich, 62, 72, 78.
Castle river, 80.
Cat island, 229.
Cedar, Red, 39.
Chain bridge, Newbur5rport, 96, 125.
Chalcedony, 237.
Chalcopyrites, 233.
Chalybeate springs, 22.
Champlain subsidence, 272.
Chemical analysis of Essex County rocks,
404.
Chert, 237.
Chestnut trees at Danvers, 36.
Chiastolite, 246.
Chromic iron, 234.
Chromite, 234.
Chrysolite, 238.
Chrysotile, 246.
Cinnamon stone, 241.
Clark's pond, Ipswich, 75.
Clay, 357.
Clay iron stone, 234.
Cliffs, 45.
Coal, 250.
Coast-lines, 45.
Cobble-stones, 374.
Coffin's beach, Gloucester, 67, 70, 72, 80.
Coke, 34.
Compass, Magnetic, 7.
Coney island, 202.
Copper, Blue carbonate of, 249.
Copper, Gray, 233.
Copper, Green carbonate of, 249.
Copper ore, 233.
Cossyrite, 238.
Cradle rock, 124.
Crane river, 54.
Crooked pond, Boxford, 284, 306.
Cryophyllite, 242.
Crystal, Rock, 237.
Currents, 62.
Danalite, 238.
Danvers, 21, 36, 54, 145, 153, 265, 320, 356,
357. 363. 378, 382.
Deer Leap rocks, 173.
Delessite, 246.
Devil's den, Newbury, 116, 133.
Diallage, 237.
Dike rocks, go, 98, 142, 154, 164, 168, 171,
173, 180, 192, 198, 206, 209, 226, 402.
Diopside, 238.
Diorite, 39, 90, 125, 129, 137, 145, 178, 182.
Divides, 21.
Dogtooth spar, 249.
Dogtown Common, 336.
Dolomite, 249.
Drainage and valley systems, 27.
Drainage creases, 290, 316.
Drift materials, 46, 58.
Drift-sand, 61, 74.
Drowned river valleys, 46.
Drumlins, 277, 395.
Drumlins carved by landslides, 344.
Drumlins, elevations and location, 395.
Drusy quartz, 237.
Dungeons, Marblehead, 284, 298, 300, 304.
Eagle hill, Ipswich, 288.
Earth, Infusorial, 237.
Elasolite, 245.
Elevation of surface, 253, 373.
Enstatite, 238.
Epidote, 241.
Erosion, 45, 46, 58, 61, 68, 373.
Erratic boulders, 320, 328, 343.
Eruptive plutonic rocks, 125.
Eruptive rocks, 32, 171, 177, 222.
Eskers, 259.
Essex, 80, 97, IS4, 156, 316, 343, 352.
Essex County, area, 21, 252.
Essex County land areas, 393.
Essex County, settlement of, 27.
Essex river, 28.
Essexite, 177, 181, 184, 185.
False topaz, 237.
Fayalite, 161, 238.
Federal city, Groveland, 93.
Fergusonite, 246.
INDEX
415
Ferruginous gravel, 324.
Ferruginous quartz, 237.
Fibrolite, 246.
Fish, brook, Boxford, 28.
Fluorite, 234.
Fluor-spar, 234.
Foliated quartz diorites, 137.
Forest lake, Middleton, 314.
Forest river, 56.
Fossils, 34, 52, 84, 98, 105, 122, 272, 363,
376-391-
Gabbro, Augite hornblende, 173.
Gabbro, Labradorite, 198.
Gabbro, Umptekite, 210.
Galena, 233.
Gale's point, Manchester, 70.
Gap head, Rockport, 42.
Garnet, 171, 238.
Garnet, Almandite, 241.
Garnet, Grossularite, 241.
Geological distribution of plants, 34.
Geological succession of rock formations, 402,
Georgetown, 22, no, 254, 289, 308.
Glacial drift boulders, 78.
Glacial ice, 253, 259, 264, 277, 373.
Glacial scratches, 136, 254, 256, 258, 278,
301, 322, 328, 343.
Glaucophane, 238.
Gloucester, 38, 67, 68, 70, 72, 80, 94, 148,
156. 157, 161, 194, 201, 332, 334, 335.
Granite, Micrographic, 154.
Granite, Muscovite biotite, 168.
Gneiss, 90, 170.
Gold, 230.
Gooseberry island, 229.
Granophyre, 154.
Graphite, 233.
Grasshopper plain, Newburyport, 266, 277,
296.
Gravel, 277, 295, 324, 372.
Graves' island, 75, 162.
Great spring, Danvers, 22.
Grossularite garnet, 241.
Groveland, 93, 112, 120, 129, 260, 308.
Guano, 249.
Halite, 233.
Hamilton, 260, 270, 274, 352.
Haverhill, 171, 173, 292, 294, 298, 313, 324,
356. 358-
Haystack boulder, 128.
Headlands, 45.
Hematite, 234.
Hematite, Brown, 234.
Hematite, Micaceous, 234.
Hills (bed-rock) in Essex County, 399.
Hills (drumlins) in Essex County, 395.
Hog island, Essex, 286, 292, 350.
Hornblende, 23S.
Hornblende, Alkali, 238.
Hornblende diorite, 129.
Hornblende epidote gneiss, 88, go.
Hornblende gabbro, 177.
Hornblende granite, 38, 39, 42, 88, 150.
Hydrocarbon, Oxygenated, 250.
Hydronephelite, 245.
Hyolithes, 34, 83, 98, 105, 122, 380.
Hypersthene, 237.
Ice-block holes , 283, 306, 310, 327.
Ice-contact, 259.
Ice-sheet, 84, 90.
Igneous volcanic rocks, 222.
Ilmenite, 234.
Indian ridge, 271.
Infusorial earth, 237.
Inland beaches, 295, 318.
lolite, 241.
Ipswich, 44, 61, 72, 78, 154, 288, 294, 296,
35°. 358-
Ipswich beach, 61, 66.
Ipswich river, 27, 30, 252, 319.
Iron, 234.
Iron, Bog, 234.
Iron, Chromic, 234.
Iron pyrites, 233.
Iron, Spathic, 249.
Iron, Speciilar, 234.
Iron stone. Clay, 234.
Iron, Titanic, 234.
Jackman farm, Ipswich, 62.
Jaspelite, 237.
Jeffersite, 246.
Jeffrey's ledge, S3, 386.
Jeffrey's Neck, Ipswich, 44.
Jeggles' island, Salem, 56.
Karnes, 283, 312.
Kaolin, 225, 357-
416
Kaolinite, 246.
Kent's island, Newbury, 225, 301.
Keratophyre, 214.
Kettle-holos, 259, 283, 290, 301.
Knottinschieflfer, 76, 113.
Labradorite, 245.
Labradorite gabbro, 198.
Lakeman farm, Ipswich, 67, 74.
Lakes and ponds in Essex County, 400.
Landslides, 344.
Lawrence, 20, 26, 96, 97, 164, 168, 170, 307.
Lead, 233.
Leda clay, 357, 363.
Ledge Hill park, Salem, 254, 258.
Ledges, 34, 332.
Legg's hill, Salem, 283, 300, 372.
Lepedomelane, 241.
Lepidolite, 241.
Leucoxene, 234.
Lime, Phosphate of, 249.
Limestone, 38, 39, 45, 84, 121, 133, 249, 380.
Limestone, Magnesian, 249.
Limonite, 234.
Lithia mica, 241.
Lithia springs, 22.
Longham basin, Beverly, 372.
Lowell island, 229.
Lynn, 51, 165, 190, 225, 327.
L5mnfield, no, 142, 178, 190, 319, 384.
Magnesian limestone, 249.
Magnesite, 249.
Magnetite, 234.
Malachite, 249.
Manchester, 51, 68, 70, 75, 152, 161, 192,
205, 343.
Manganese, Bog, 234.
Marble, 249.
Marblehead, 75, 82, 146, 162, 166, 214, 222,
226, 258, 283, 300.
Marblehead harbor, _ 7 .
Marcasite, 233.
Marmolite, 246.
Marshes, 42, 44, 45.
Menaccanite, 234.
Merrimac, loi, 266.
Merrimac river, 20, 24, 27, 46, 51, 58, 96,
308, 324, 326.
Metamorphism, 76, 171, 181.
Metcalf's rock, 130.
Methuen, 98, 271, 302.
Mica, Biotite, 241.
Mica-granite, 172.
Mica, Lithia, 241.
Mica, Muscovite, 241.
Mica, Phlogopite, 241.
Mica-schist, 38, 39, 45, 76, 94, 97 (2).
Micaceous hematite, 234.
Microcline, 245.
Microcline microperthite, 245.
Micrographic granite, 154.
Middleton, 30, 138, 141, 154, 314.
Miles river, 28.
Milky quartz, 237.
Mill creek, 28.
Mineral waters, 22.
Minerals of Essex County, 230, 248.
Mingo beach, Beverly, 60.
Mining, 225.
Misery island, Salem, 190.
Mispickle, 233.
Mitchell's falls, Merrimac river, 24.
Molybdenite, 233.
Monadnocks, 34.
Moraines, 259, 307, 336.
Moses' mountain, 154, 344.
Mosquito brook, 28.
Mount Desert, 253.
Mount Greylock, 253.
Muscovite biotite granite, 168.
Muscovite biotite granite, foliated, 168.
Muscovite mica, 241.
Nahant, 38, 45, 51, 60, 104, 114, 121, 380,
386, 39°-
Natrolite, 245.
Nepheline, 245.
Nepheline syenite, i8g, 192.
Nephelite, 245.
Newbury, 106, 116, 126, 128, 130, 132, 225,
278, 288, 295, 301, 322.
Newburyport, 96, 266, 277, 296, 358.
Nichols' brook, Dan vers, 28.
Nickel, 173, 233.
Niles' pond, Gloucester, 334.
Noble serpentine, 246.
Nordmarkite, 201.
Norseman's rock, 124.
Norwood's pond, Beverly, 265.
Nubble squid, Groveland, 112, 129, 134.
417
Ochre, Brown, 234.
Ochre, Red, 234.
Ochre, Yellow, 234.
Olivin, 238.
Opal, 237.
Ordway boulder, 128.
Orthite, 241.
Orthoclase, 245.
Orthoclase microperthite, 245.
Orthoclase, Pseudomorph of, 246.
Outcrops of bed-rock, 76.
Paisanite, 173.
Paleontology of Cambrian rocks, 380.
Parker river, 28, 46, 48.
Peabody, 142, 165, 320, 330.
Peabody Academy of Science, 230, 248.
Peat, 283.
Peat deposits, 34, 51.
Pennenite, 246.
Petricola, 52.
Phlogophite mica, 241.
Picrolite, 246.
Picrosmine, 246.
Pine swamp, Ipswich, 289, 295.
Pinite, 246.
Plants, Geological distribution of, 34.
Plum island, 46, 58, 62.
Plutonic rocks, Eruptive, 125.
Pond beach, Nahant, 60.
Ponds and lakes in Essex County, 400.
Porphyritic granite, 166.
Porphyry, 202, 225.
Portlandia Arctica, 363, 370, 373, 376.
Post-Cambrian rocks, 402.
Post-Pleistocene sand and gravel, 295.
Potteries, 358.
Powow river, 27.
Prase, 237.
Prehnite, 245.
Privy ledge, 57.
Pulaskite, 201.
Pulaskite syenite, 180, 200.
Pyrite, 233.
Pyrites, Copper, 233.
Pyrites, Iron, 233.
Pyrites, White iron, 233.
Pyroxene, 237.
Pyrrhotite, 233.
Quaking bogs, 284.
Quantitative classifications of the rocks, 405.
Quartz, 237, 249.
Quartz, Actinolitic, 237.
Quartz augite diorite, 125.
Quartz augite syenite, 190.
Quartz diorite, go, 125.
Quartz, Drusy, 237.
Quartz, Ferruginous, 237.
Quartz hornblende diorite, 92.
Quartz, Milky, 237.
Quartz, Rose, 237.
Quartz, Smoky, 237.
Quartzite, 237.
Quatenary Pleistocene period, 253.
Rabbit rock, 149.
Raccoon rocks, 152, 344.
Residua! clays, 357.
Rhyolite, 76.
River systems, 27.
Roches Moutonnees, 254, 262.
Rock crystal, 237.
Rockport, 148, 150, 157, 161, 256, 335.
Rose quartz, 237.
Rowley, 44, 84, 93, 122, 130, 222, 271, 286,
352, 384-
Ruby spinel, 249.
Rutile, 234.
Ryefield, Byfield, 295.
Salem, 56, 83, 86, 108, 136, 142, 146, 178,
180, 192, 254, 258, 278.
Salem harbor, 57.
Salemite, 186.
Salisbury, 302.
Salisbury beach, 58.
Salt, 233.
Sanadin, 245.
Sand, 58, 62, 271, 295.
Sand-bars, 62, 66.
Sand-dunes, 62, 295.
Sand-ridges, 61.
Sandstone, 76, 117.
Sandy bay, Rockport, 68.
Saugus, 113, 166, 232, 328.
Saugus rive'r, 50.
Scapolite, 241.
Schiefferhornfels, 97.
Schiller spar, 246.
Sedimentary rocks, 32, 76, 94.
Sedin:ient 58, 84.
Sericite, 241.
418
INDEX
Serpentine, 133, 246.
Serpentine, Noble, 246.
Shale, 121.
Shawsheen river, 27.
Sheep backs, 254, 262.
Ship rock, Peabody, 320, 326.
Siderite, 249.
Siderite, Bronze, 249.
Silicious sinter, 237.
Silver, 233.
Singing Sand beach, Manchester, 68.
Sinter, Silicious, 237.
Slate or mica-schist, 38, 39, 45. 7^, 97-
Smoky quartz, 237.
Soapstone, 245.
Soda-microcline, 198, 245.
Sodalite, 245.
Solvsbergite, 202.
Soundings, 57.
Spar, Brown, 249.
Spar, Calc, 249.
Spar, Dogtooth, 249.
Spar, Schiller, 246.
Spar, Tabular, 237.
Spathic iron, 249.
Specular iron, 234.
Sphalerite, 233.
Sphene, 246.
Spicket river, Lawrence, 26, 27, 302.
Spinel, Ruby, 249.
Split boulder, 120.
Springs, 22.
Squam river, 42, 335.
Steatite, 245.
Stenotheca, 83, 106.
Stibnite, 233.
Stickney boulder, 120, 134.
Stone, Amazon, 245.
Stone, Cairngorm, 237.
Stone, Cinnamon, 241.
Straitsmouth island, Rockport, 42.
Stratified rocks, 76.
Subsidence, 46, 51, 272, 292, 370.
Sugar loaf hills, 106, 254, 262.
Surface areas, 393.
Surface features, 34.
Syenite, Augite, 42, 178, 194.
Syenite, Nepheline, 189, 192.
Syenite, Pulaskite, 180, 200.
Syenite rocks, 177, 402.
Syenites of Salem Neck, 178, 184.
Talc, 246.
Tertiary uplift, 253, 373.
Tetrahedrite , 233.
Thatcher's island, 198, 229.
Thompson's mountain, 158.
Tilting of the surface, 33, 373.
Tinguaite, JEgirine, 209.
Tinguaite, Analcite, 209.
Tinguaite dike, 206.
Titanic iron, 234.
Titanite, 246.
Toadstone, 225.
Tombolas, 75, 265.
Topaz, False, 237.
Topsfield, 22, 84, 106, 118, 154, 252, 254,
260, 262, 290, 296, 314, 352, 384, 388, 390.
Tourmaline, 246.
Tremolite, 238.
Tripolite, 237.
Turgite, 234.
Umptekite, 177.
Umptekite gabbro, 210.
Upper clays, 357.
Uralite, 246.
Valley systems, formations of, 27.
Vesuvianite, 134, 241.
Volcanic rocks, 32, 222, 403.
Wad, 234.
Wash-plains, 278.
Waters' river, 54.
Watersheds, 21.
Wenham, 265, 276, 310.
Wenham lake, 316.
Wenham swamp, 34, 284.
Wernerite, 241.
West Newbury, loi, 105, 166, 266, 313,
346, 348-
Willowdale, 260, 274.
Winds, Effect of, 66.
Winter island, 178, 181.
Wolf hill, Gloucester, 342.
WoUastonite, 237.
Xanthosiderite, 234.
Yttrocerite, 250.
Zinc blende, 233.
Zircon, 238.
I Zoisite, 241.
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