INDEX TO ADIRONDACK MAGNETIC IRON ORES 



175 



Point mines, 40; Hammondville 

 mines, 45; Lake Sanford deposits, 

 157; Lyon Mountain mines, 108; 

 Minerva mine, 89; Mineville-Port 

 Henry group, 67, 68; St Lawrence 

 county mines, 130, 140, 142; Salis- 

 bury mine, 143. 



Cumings, W. L., acknowledgments 

 to, 7 ; mentioned, 163. 



Cushing, H. P., cited, 10, II, 13, 15, 

 19, 21, 28-29, 63, 64, 108, 109, 125, 

 142, 143, 144, 157. 



Dannemora mines, 105, 124, 125. 



Dannemora mountain, 108. 



Darton, N. H., cited, 22. 



Diabase dikes, 19 ; Arnold hill and 

 Palmer hill, 91, 93-94, 101; Ham- 

 mondville mine group, 45; Lyon 

 Mountain mines, 112, 115, 122; 

 Mineville-Port Henry group, 61- 

 62; Saranac valley mines, 125. 



Dickson vein, Lyon Mountain 

 mines, 113, 116, 117. 



Dike rocks, 12, 19. See also Diabase 

 dikes. 



Dills & Lavake pit, 90, 103. 



Diorites, 15, 65. 



Dioritic gneiss, 66. 



Dodge vein, Clifton mines, 140. 



Dog Alley mine, 52. 



Drill tests, Hammondville mines, 53; 

 Lyon Mountain mines, 118-20. 



Drown, T. M., analysis by, 54. 



Elizabethtown, titaniferous mag- 

 netite, 147. 



Ellenburgh mountain, 108. 



Elliot pit, Palmer hill mines, 100, 

 IOI. 



Ellis mine, 126. 



Emmons, E., cited, 10, 16, 57, 58, 69, 

 72, 90, 95, 98, 103, 104, 128, 131, 146, 

 149, 155, 156, 159, 161, 162, 171. 



Epidote, 114. 



Essex county, 8; anorthosite, 16; 

 dike rocks, 19; faults, 21; field 

 work in, 11; flexures, 21; gabbro, 

 17; gneisses, 14; Grenville series, 

 30; Lake Sanford deposits, 155; 



limestones and schists, 13; mag- 

 netites, 23, 26; mines, 40-90, 164- 

 68, 169; quartzite, 14; titaniferous 

 magnetite, 147. 



Essex Mining Co., 57, 68. 



Essler pit, Jayville mines, 138. 



Eupyrchroite, Crown Point mines, 

 40. 



Fairbanks mine, 126. 



Faults, existence of, 21 ; Arnold hill 

 mines, 94~95- 



Feldspar, 9 ; found in amphibolites, 

 14; anorthosites, 17, 67, 147, 157; 

 gabbros, 17, 62, 158, 168; gneisses, 

 13, 15, 28, 30, 45, 46, 91, 109, no, 

 in, 132, 140, 143, 144, 148, 169; 

 granites, 18, 46, 47, 112; magnetites, 

 24, 53, 100, 113, 116, 122, 135, 145, 

 159, 160, 162, 166, 168, 169; peg- 

 matite, 114; quartzites, 14, 15; 

 schists, 46, in; syenites, 18, 46, 

 64, 65, 93, 143. 



Finch pit, Arnold hill mines, 90, 94, 



98-99. 



Fine, magnetites, 23 ; Grenville series, 

 30; mines, 128, 138-39. 



Fisher hill mines, 72, 86. 



Fletcherville, furnace, 58. 



Fluorite, in magnetites, 28, 32, 52, 

 96, 100. 



Foliation, 20. 



Foote, W. T., acknowledgments to, 

 7; cited, 150. 



Fort Ann, statistics of ore produc- 

 tion, 35; mines near, 37-40. 



Fort Ticonderoga, hematite, 6, 42. 



Franklin county, 8; gneisses, 15; 

 magnetites, 23; titaniferous mag- 

 netite, 147; syenite, 18. 



Fuller pit, Jayville mines, 138. 



Fulton county, 8. 



Gabbroic gneiss, 66; Cheney deposit, 

 161. 



Gabbros, 15, 17-18, 31, 62-63, 147, 

 149, ISO; analyses, 148; Arnold hill 

 and Palmer hill, 91, 93; Ham- 

 mondville mines, 45, 46, 48, 49; 

 Humbug vein, 170; Lake Sanford 



