INDEX TO REPORT OF THE DIRECTOR I9IO 



275 



Fairchild, H. L., study of special 

 features of Lake Iroquois and 

 Gilbert gulf, 17; Geology of the 

 Thousand Islands Region, 62. 



False maple scale, ^y. 



Fauna of Coffin island, 175-86. 



Felt, E. P., Control of Flies and 

 Other Household Insects, 63. 



Fish beds, at Migouasha, strati- 

 graphy of, 12&-30. 



Flies, 3&-39, 63. 



Fordham gneiss, 16. 



Forest insects, 37-38. 



Fossils, collections of, 31. 



Frankfort beds, 11, 12. 



Fruit tree pests, 36-^/. 



Fruit worm, sy. 



Gabbros, 13. 



Gall midge, 39, 40. 



Gaspe Basin, lead mines, historical 



note on, 130-33. 

 Gastropod, 186. 

 Gastrioceras ?, 174, 186. 

 Gavelin, acknowledgments to, 105. 

 Geijer, cited, iii, 112, 113. 

 Geologic maps, 64; list, 7. 

 Geological survey, report on, 6-31. 

 Geology bulletins, 60-62, 64. 

 Gilbert gulf, study of, 17. 

 Gipsy moth, 38. 

 Girty, cited, 165. 

 Glacial geolog\', 17. 

 Glacial phenomena, of Adirondacks, 



13- 

 Gloversville moraine, 19. 

 Gneisses of Highlands, 14; of 



southeastern New York, 16. 

 Gordon, survey of Poughkeepsie 



quadrangle, 14. 

 Granites, 13. 

 Graphite, 11. 

 Green fruit worm, 37. 

 Grenville gneisses, 11, 13, 14. 

 Gulf of St Lawrence, notes on the 



geology of, by John M. Clarke, 



121-55- 

 Gypidula pseudogaleata, 126. 

 Gypsum, report on, 19-20. 



Gypsum deposits, by D. H. New- 

 land and Henry Leighton, 62. 



Gypsum in Magdalen islands, 149- 

 51- 



Hall, C. E., cited, 196. 



Haly sites, 129. 



Hambach, G., cited, 195, 205. 



Hartnagel, work of, 31. 



Haworth, E., cited, 106. 



Helderbergs, 18. 



Hemiptychina, 179. 

 sparsiplicata, 179. 

 waageni, 159, 178, 185. 



Hickory bark beetle, 37. 



Highlands district, study of, 14. 



Hogbom, A. G., cited, 95, 96, 99, 

 100, 106, III, 113; acknowledg- 

 ments to, 105. 



Hollick, to report on the geology 

 of Greater New York, 17; geo- 

 logical structure of Staten Island, 



I/- 

 Holmquist, acknowledgments to, 



105. 

 Honeoye-Wayland quadrangles, 



geology of, 64. 

 House fly, 38-39. 

 Household insects, bulletin on, by 



E. P. Felt, 63. 

 Huckleberry mountain, 189. 

 Hudson, George H., survey of Val- 



cour island, 14; Studies of some 



early Siluric Pelmatozoa, 195-257. 

 Hudson river, course before glacial 



epoch, 14. 

 Hudson River shales, 11. 



Igneous rocks, 13. 



Indian Ladder beds, 12. 



Indians of New York, study of, 



44-45- 

 Industrial geology, 19-21. 

 Iron mines, 20. 

 Iron ores, notes on the geology of 



the Swedish magnetites, 107-19. 

 Iroquois, Lake, study of, 17. 

 Iroquois uses of maize and other 



food plants, by A. C. Parker, 64. 



