INDEX TO AMERICAN BOTANICAL LITERATURE 61 
Glaser, O. C. The theory of autonomous folding in embryogenesis. 
Science II. 44: 505-509. f. 1, 2. 6O 1916. 
Goodspeed, T. H., & Ayres, A.H. On the partial sterility of Nicotiana 
hybrids made with N. sylvestris as a parent—II. Univ. Calif. 
Publ. Bot. 5: 273-290. pl. 36. 4 O 1916. 
Greenman, J. M. <A new Senecio from Jamaica. Ann. Missouri Bot. 
Gard. 3: 201, 202. Ap 1916. ; 
Senecio Hollickii Britton. 
Haas, A.R. The acidity of plant cells as shown by natural indicators. 
Jour. Biol. Chem. 27: 233-241. O 1916. 
Haas, A.R. The excretion of acids by roots. Proc. Nat. Acad. Sci. 2: 
561-566. O 1916. 
Haas, A. R. The permeability of living cells to acids and alkalies. 
Jour. Biol. Chem. 27: 225-232. O 1916. 
Hagen,I. A correctionin nomenclature. Bryologist19:70. 401916. 
Harris, J.A. A quantitative study of the factors influencing the weight 
of the bean seed—II. Correlation between number of pods per 
plant and seed weight. Bull. Torrey Club 43: 485-494. f. I-4. 
20 O 1916. 
Harris, J. A., & Lawrence, J. V. On the osmotic pressure of the tissue 
fluids of Jamaican Loranthaceae parasitic on various hosts. Am. 
Jour. Bot. 3: 438-454. f. I, 2. 20 O 1916. 
Hill, E. J. Fossombronia crispula in the dune region of Indiana. 
Bryologist 19: 67, 68. 4 O 1916. 
Hoar, C.S. The anatomy and phylogenetic position of the Betulaceae. 
Am. Jour. Bot. 3: 415-435. pl. 10-19. 20 O 1916. 
Holman, R. M. Influence of the medium upon the orientation of 
secondary terrestrial roots. Am. Jour. Bot. 3: 407-414. f. I-3- 
20 O 1916. 
Jeffrey, E. C., & Cole, R. D. Experimental investigations on the genus 
Drimys. Ann. Bot. 30: 359-368. pl. 7. Ji 1916. 
Kaiser, G. B. Mosses rare in Philadelphia. Bryologist 19: 69. 40 
1916. 
Kennedy, G. G. Some historical data regarding the sweet bay and its 
station in Cape Ann. Rhodora 18: 205-212. 2 O 1916. 
Kiesselbach, T. A. Transpiration as a factor in crop production. 
Nebraska Agr. Exp. Sta. Research Bull. 6: 1-214. pl, 1-4 + f. I-24. 
20 Je 1916. 
