496 INDEX TO AMERICAN BOTANICAL LITERATURE 
Chaney, R. W. Quantitative studies of the Bridge Creek flora. 
Am. Jour. Sci. 8: 127-144. pl. 5, 6. Au 1924 
Chung, H. L., & Ripperton, J. C. Edible Canna in Hawaii. 
Hawaii Agr. Exp. Sta. Bull. 54: 1-16. f. 1-3 + pl. 1, 2. 
Jl 1924. 
Cleaves, H. H. How trees make sounds. Nat. Mag. 4: 177. 
“S** Aw2%o24, 
Clute, W. M. Plants of acid soils. Gardeners’ Chron. Am. 
an 2th, es A 1024. ~ 
Cole, L. J. A seedless muskmelon. Jour. Heredity 15: 219. 
- “My”’ 30 Jl 1924. (Illust.) 
Collins, G. N. Measurement of linkage values. Jour. Agr. 
Res. 27: 881-891. 15 Mr 1924 
Cook, E. F. Chocolate. Am. Jour. Pharmacy 96: 549-556. 
Au 1924. (Illust.) . 
Coville, F. V. Grossularia echinella [sp. nov.] a spiny-fruited 
gooseberry from Florida. Jour. Agr. Res. 28: 71-74, pl. 
I. & Ap 1624. 
Crandall, C.S. Blooming periods of apples. Illinois Agr. Exp. 
Sta. Bull. 251: 113-145. My 1924. 
Crocker, W. Ethylene, or the gas that puts plants and animals 
to sleep. Jour. N. Y. Bot. Gard. 25: 219-223. Au 1924. 
Abstract of a lecture. 
Darrow, G.M. The American cranberry bush. The domestica- 
tion of Viburum americanum—a new fruit for the northern 
United States. Jour. Hered. 15: 243-253. f. r-10. ‘‘Je”’ 
21 Au 1924, 
Davidson, F. R., Brewbaker, H. E., & Thomson, N. A. Brittle 
straw and other abnormalities in rye. Jour. Agr. Res. 28: 
169-172. f. 7,2. 12 Ap toad. 
Davis, R. N. The lightest wood in the world. Nowe Mag. 
4: 166-167. ‘S” Au 1924. (Illust.) 
Dayton, W. A. Flowers of the high places. I. Some striking 
examples of Alpine flora which brave the eternal frosts to — 
