654 INDEX TO AMERICAN BOTANICAL LITERATURE 
Higgins, D. F. The white-barked pine. Jour. Heredity 7: 399-40I. 
$2 5,0 D116. 
Hotson, J. W. The longevity of Bacillus amylovorus under field condi- 
tions. Phytopathology 6: 400-408. f. 1-4. O 1916. 
Howe, I. A. Botanizing in St. Johnsbury in 1915. Vermont Bot. & 
Bird Club Joint Bull. 2: 21, 22. Ap 1916. 
Jones, L. R., Johnson, A. G., and Reddy, C. S. Bacterial blights of 
barley and certain other cereals. Science II. 44: 432, 433. 22S 
1916. 
Johnston, J. R. Phytopathological work in the tropics. Phyto- 
' pathology 6: 381-386. O 1916. 
Kurtz, F. Essai d'une bibliographie botanique de |’Argentine. Bol. 
Acad. Nac. Cien. Cordoba 16: 117-272. 1900. 
Lazenby, W. R. Qualities and uses of the woods of Ohio. Ohio Biol. 
Surv. 2: 75-111. f. 1-18. Ja 1916. 
Leighty, C. E. Carman’s wheat-rye hybrids. Jour. Heredity 7: 420- 
427.f. t4a-317. SS 1916. 
Link, G. K. K. A physiological study of two strains of Fusarium in 
their causal relation to tuber rot and wilt of potato. Bot. Gaz. 62: 
169-209. f. I-13. 15S 1916. 
Lipman, C. B. A critique of the hypothesis of the lime-magnesia ratio. 
I. Plant World 19: 83-105. Ap 1916. II. Plant World 19; 119-135- 
My 1916. 
Léhnis, F., & Smith, N. R. Life cycles of the bacteria. Jour. Agr. 
Research 6: 675-702. pl. A-G +f. 1. 31 Jl 1916. 
Lorenz, A. Additions to the Vermont hepatic list for 1915. Vermont 
Bot. & Bird Club Joint Bull. 2: 13, 14. Ap 1916. 
Lunell, J. Enumerantur plantae Dakotae septentrionalis vasculares— 
VII. Am. Mid. Nat. 4: 419-431. 26 Jl 1916;—VIII. Am. Mid. 
Nat. 4: 467-487. S 1916. 
MacDougal, D. T. Imbibitional swelling of plants and colloidal mix- 
tures. Science II. 44: 502-505. 60 1916. 
Manns, T. F., & Taubenhaus, J. I. Streak: a bacterial disease of the 
sweet pea and clovers. Gard. Chron. III. 53: 215, 216. f. 96; 97: 
5 Ap 1913. 
