448 INDEX TO AMERICAN BOTANICAL LITERATURE 
Britton, E. G. Thoughtless destruction of Jack in the pulpit. Jour. 
N. Y. Bot. Gard. 13: 68, 69. pl. 94. Je 1912. 
Britton, E. G. Wild plants needing protection. I. ‘‘ Jack in the 
pulpit ” [Arisaema triphyllum (L.) Torr.]. Jour. N. Y. Bot. Gard. 
13: 67, 68. pl. 93. Je 1912. 
Britton, N. L. Further botanical exploration in Cuba. Jour. N. Y. 
Bot. Gard. 13: 69-76. Je 1912. 
Britton, N. L. The preservation of our native plants. Craftsman 22: 
377-386. Jl 1912. [Illust.] 
Digest of a lecture given at the New York Botanical Garden. 
Broadhurst, J. A biometrical study of milk streptococci. Jour. Infect. 
Dis. 10: 272-284. My 1912. 
Broadhurst, J. The genus Struthiopteris and its representatives in 
North America—I. Bull. Torrey Club 39: 257-278. pl. 21, 22 
10 Jl 1912. ‘3 
Includes Siruthiopteris jamaicensis and S. Maxoni spp. nov. 
Brown, W.H. The mechanism of curvature in the pulvini of Mimosa 
pudica. Philip. Jour. Sci. 7: (Bot.) 37-40. Ap 1912. 
Brush, W. D. The formation of mechanical tissue in the tendrils of 
Passiflora caerulea as influenced by tension and contact. Bot. 
Gaz. 53: 453-477. f. 1-3. 17 Je 1912. 
Burns, G. E. Distribution of xerophytes. Bull. Vermont Bot. Club 
¥: 21. «My tore, 
Cameron, F. K., and others. A preliminary report on the fertili 
sources of the United States. 62d Congress, 2d Session, Sen. Doc. 
190: 15-290. pl. 1-19 + maps o-18, Washington. 1912. 
o the marine algae 
zer re- 
Contains considerable botanical information relating t 
North America. 
Also indexed in part under separate authors. 
Cannon, W. A. Some features of the root-systems of the d 
Pop. Sci. Mo. 81: 90-99. Jl 1912. [Illust.] 
Clark, W. B., & Miller, B. L. The physiography and geology ef ‘ 
Virginia Geol. Surv. BW ® 
esert plants. 
{ the 
coastal plain province of Virginia. 
13-274. pl. 1-19. 1912. 
: F tion on the 
Includes information relating to fossil plants of the region. See 
Lower Cretaceous (pp. 191-199) contributed by E. W. Berry. pak ae 
Clements, F. E. Some impressions and reflections. New Phyto! 
177-179. 24 Je 1912. 
7-179. 24 Je 19 e oak. Jour 
Coker, W. C. The seedlings of the live oak and whit 
Elisha Mitchell Sci. Soc. 28: 34-41. pl. 2, 3- My 191% 
