INDEX TO AMERICAN BOTANICAL LITERATURE 103 
Fernald, M. L. The specific validity of Limosella subulata. Rhodora 
20: 160-164. 4S 1918. 
Fleming, C.E. Range plants poisonous to sheep and cattle in Nevada. 
Nevada Agr. Exp. Sta. Bull. 95: 1-51. pl. 1-6 + f. I-23. Ji 1918. 
Freeman, G. F. The purple hyacinth bean. Bot. Gaz. 66: 512-523. 
f. 1-7.. 18.D 1918. 
Gager, C.S. A brief history of the Botanic Garden idea in Brooklyn. 
Brooklyn Bot. Gard. Rec. 7: 99-112. f. 5-8. O 1918. 
Gardner, M. W. Anthracnose of cucurbits. U.S. Dept. Agr. Bull. 
727: 1-68. pl. 1-8 eee i-15. 18 D 1918. 
Gillespie, L. J., & Hurst, L. A. Hydrogen-ion concentration—soil 
type—common potato scab. Soil Sci. 6: 219-236 . f. I-3. 5 1918. 
Goodspeed, T. H. Modification of hand microtome. Bot. Gaz. 66: 
534-536. f. z- 18 D 1918. 
Graves, A.H. Resistance in the American chestnut to the bark disease. 
Science II. 48: 652, 653. 27 D 1918. 
Greaves, J. E. Azofication. Soil Sci. 6: 163-217. f. 1, 2. S 1918. 
Griggs, R. F. The recovery of vegetation at Kodiak. Ohio Jour. 
Sci. 19: 1-57. N 1918. [Illust.] 
Gundersen, A. A sketch of plant classification from Theophrastus to 
the present. Torreya 18: 213-219. 16 D 1918; 231-239. 20 Ja 
1919. 
Harris, J. A. On the osmotic concentration of the tissue fluids of 
phanerogamic epiphytes. Am. Jour. Bot. 5: 490-506. 30 N 1918. 
Harter, L. L., Weimer, J. L., & Adams. J. M.R. Sweet-potato storage- 
rots. Jour. Agr. Research 15: 337-368. pl. 21-27. 11 N 1918. 
Haupt, A. W. A morphological study of Pallavicinia Lyellit. Bot. 
Gaz. 66: 524-533. pl. 20-24. 18D 1918. 
Hoagland, D. R. The relation of the plant to the reaction of the nu- 
trient solution. Science II. 48: 422-425. 25 O 1918. 
Hoffer, G. N., & Holbert, J. R. Selection of disease-free seed corn. 
Purdue Agr. Exp. Sta. Bull. 224: 1-16. f. 1-20. S 1918. 
Howe, M. A. The dahlia border. Jour. N. Y. Bot. Gard. 19: 291, 
292. N 1918. 
Hutchinson, A. H. Limiting factors in relation to specific ranges of 
tolerance of forest trees. Bot. Gaz. 66: 465-493. f. 1-7. 18D 1918. 
Jennings, O. E. Notes on the mosses of northwestern Ontario. I. 
Sphagnum. Bryologist 21: 69-78. pl. 27. 7 D 1918. 
