44 
INDEX. 
Flycatcher, IV, 206. 
Gull, IV, 202. 
Formica, VI, 27f, 28f, 30f. 
fusca, VI, 28f, 30f. 
Formicidse, III, 104f, 116f, 125f, 147f, 
VI, 22f, 24 f, 26f, 59f, 62f. 
formosa, Oporornis, IV, 175. 
forsteri, Sterna, IV, 202. 
Forster’s Tern, IV, 202. 
Fossorial Carabidse, VI, 50. 
Four-toed Salamander, Y, 12. 
fowleri, Bufo, Y, 17. 
Fox-colored Sparrow, IY, 181. 
Fox Snake, Y, 36. 
fragarise, Siphonophora, II, 8. 
Fragilaria capucina, YI, 99f. 
franklini, Laras, IY, 202. 
Franklin’s Gull, IY, 202. 
Fraxinus, I, 27, 28, 29, 30, 31. 
americana, I, 31. 
pubescens, I, 31. 
quadrangulata, I, 31. 
sambucifolia, I, 29, 31. 
viridis, I, 58f. 
Fresh-water Leather Turtle, Y, 52. 
Shrimp, III, 30f. 
fretensis, Alburnops, II, 57. 
Hybopsis, I, 47. 
friesii, Microsphseria, I, 58. 
Fries, on Fungi, I, 52. 
frigida, Moniana, II, 58. 
Fringillidse, IY, 167, 178, 205, YI, 11*, 
24*, 29*. 
Frog, Bull, Y, 25. 
Common, Y, 24. 
Green, Y, 24 
Pickerel, Y, 24. 
Frogs, tadpoles of, II, 79f. 
Frugivorous birds, III, 99. 
frugivorus, Corvus, IY, 183. 
Fruit of Virginia Creeper, III, 11 If. 
trees, leaves of, III, 119f. 
Fruits, III, 96f, 98f, 102f, 103f, 106f, 
107f, 109f, lllf, H2f, H3f, 
115f, 118f, 120f, 121 f, 122f, 
123f, 126f, 128f, 129f, 131f. 
132f, 134f, 135f, 136f, 148f. 
edible, III, 102f, 113f, 123f, 135f, 
I44f, 145f. 
tame, III, 101. 
wild, III, 101. 
garden, III, 101f, 102f, lllf, 114, 
115f, 123f, 124f, I45f. 
smaller, III, 110, 115f, 122f. 
inedible, III, 101. 
mid-summer, III, 128f. 
small, III, 103f, 109f, 110f, 123f, 
124f, 132f. 
tame, III, 97f, 112f. 
wild, III, 97f, 99f, 110, lllf, 124f, 
143f, 144f. 
Frullania, II, 26. 
fruticosa, Amorpha, I, 27. 
Fulica, IY, 198. 
americana, IY, 198. 
fulicarise, Geranomorphse, IV, 197. 
fulicarius, Phalaropus, IY, 197. 
Fulix, IY, 200. 
affinis, IY, 200. 
collaris, IY, 200. 
marila, IY, 200. 
fulva, Dendrocycna, IV, 208. 
Impatiens, II, 12. 
Ulmus, I, 28, 29, 31. 
fulvius, Elaps, Y, 29. 
Fulvous Tree Duck, IY, 208. 
Fumago, I, 58. 
fumans, Brachinus, VI, 39*. 
fumipennella, Aphis, II, 14. 
fumosa, Peronospora, I, 5*6. 
Funaria, II, 22. 
Fundulus, I, 42, II, 51, 88*, VI, 70*, 72. 
diaphanus, I, 42, II, 51, 78*, 85*, 
VI, 71*, 93*. 
menona, II, 52, VI, 70. 
funera, Surnia, IV, 188. 
Fungi, III, 159f, VI, 40f, 41f, 42f, 43f, 
44f, 45f, 46fr 48f, 49f, 51f, 52f, 
53f, 54f, 55f, 59f, 60f, 61f, 63f, 
64f, 77f, 80f, 94 f. 
fleshy or cartilaginous, III, 157f, 
158f, VI, 42f. 
mycelium of, III, 158. 
parasitic, I, 52. 
spores of, III, 155f, 156f, 157f, 158f, 
159f, VI, 50f, 52f, 53t, 54f, 
• 55f, 77f, 80f, 84 f. 
stylospores of, III, 156f. 
Upon parasitic, I, 52-59. 
furcatus, Ictalurus, I, 50, II, 66. 
Ichthoelurus, II, 66. 
fusca, Formica, VI, 28f, 30f. 
