INDEX TO AMERICAN BOTANICAL LITERATURE 8 ae 
Detwiler, S..B. Douglas fir. Identification and characteristics. Am. 
Forestry 22: 67-69. F 1916. [Illust.] 
Dodge, C. K. The flowering plants, ferns, and fern allies growing 
without cultivation in Lambton County, Ontario. Ann. Rep. 
Michigan Acad. Sci. 16: 132-200. [1915,] 
Doolittle, S.P. A new infectious mosaic disease of cucumber. Phyto- 
pathology 6: 145-147. 4 Ap 1916. 
Fawcett, H. S. Report of former plant pathologist. Ann. Rep. 
Florida Agr. Exp. Sta. 1912: Ixiv~xcii.. Mr 1913. 
Includes further report on stem-end rot, Phomopsis citri. 
Fred, E.B. Relation of carbon bisulphide to soil organisms and plant 
growth. Jour. Agr. Research 6: 1-20. pl. 1, 2. 3 Ap 1916. 
Gates, R. R. On pairs of species. Bot. Gaz. 61: 177-212. f. I-12. 
15 Mr 1916. 
Gilbert, W. W. Cucumber mosaic disease. Phytopathology 6: 143, 
144. pl. 5. 4 Ap 1916. 
Gregory, C. T. The taxonomic value and structure of the peach leaf 
glands. Cornell Agr. Exp. Sta. Bull. 365: 183-224. pl. 1-9 + f. 37» 
38. N 1915. 
Grossenbacher, J. G. Sour scab of Citrus in Florida, and its preven- 
tion. Phytopathology 6; 127-142. f. 1-4. 4 Ap 1916. 
Harper, E. T. Two parasitic mushrooms. Mycologia 8: 65-72. Pi. 
447-179.. 11 Ap 1916. 
Harter, L.L. Sweet-potato diseases. U.S. Dept. Agr. Farmers’ Bull. 
714: 1-26. f. -2r. 11 Mr 1916. 
Herriot, W. Data on seed maturity of some Ontario plants. 
Nat. 29: 151-157. 10 Ap 1916. 
Higgins, B. B. Plum wilt, its nature and causes. Georgia Agr. Exp. 
Sta. Bull, 118: 1-29. f. 1-25. Ja 1916. 
Hill, J. B. A method for the dehydration of histological material. 
Bot. Gaz. 61: 255, 256. 15 Mr 1916. 
Holden, R. Hybrids of the genus Epilobium. Am. Nat. §0: 243-247: 
f. 1-4. Ap 1916. 
Howitt, J. E., & McCubbin, W. A. An outbreak 
rust in Ontario. Phytopathology 6: 182-185. 4 Ap 1916. 
Howitt, J. E., & Stone, R.E. A troublesome disease of winter tomatoes. 
Phytopathology 6: 162-166. 4 Ap 1916. 
Ottawa 
of white pine blister 
