104 INDEX TO AMERICAN BOTANICAL LITERATURE 
Jones, D. F. The effects of inbreeding and crossbreeding upon de- 
velopment. Connecticut Agr. Exp. Sta. Bull. 207: I~100. pl. 
12+ f. 1-3. $1918. 
Kraus, E. J., & Kraybill, H. R. Vegetation and reproduction with 
special reference to the tomato. Oregon Agr. Exp. Sta. Bull. 149: 
1-90. f. I-22. Ja 1918. 
Lindstrom, E. W. Chlorophyll inheritance in maize. Cornell Agr. 
Exp. Sta. Mem. 13: 1-68. pl. 1-5. Au 1918. 
Lombard, L.H. The purple water avens. Am. Bot. 24: 129-131. 
N 1918. 
Lovell, J. H. The flower and the bee. i-xvii + 1-286. f. 1-119. 
New York. 1918. 
MacCaughey, V. The pineapple guava. Am. Bot. 24: 122-125. 
N 1918. 
MacMillan, H. G. An epidemic of corn smut following hail. Phyto- 
pathology 8: 584, 585. N 1918. 
Maxon, W. R. The lip-ferns of the southwestern United States re- 
lated to Cheilanthes myriophylla. Proc. Biol. Soc. Washington 31: 
139-152. 29 N 1918. 
Cheilanthes Covillei and C. Wootoni, spp. nov., are described. 
Maxon, W.R. A new Polystichum from California. Jour. Washington 
Acad. Sci. 8: 620-622. 19 N 1918. 
Polystichum Dudleyi sp. nov. 
Miller, C. C. Bud curl of the lemon tree. Month. Bull. State Com. 
Hort. Calif. 7: 515-519. f. 70-74. S 1918. 
Murrill, W. A. Cuban polypores and agarics. Mycologia 11: 22-32. 
Ja 1919. 
Nelson, J. C. Further additions to the flora of western Oregon. 
Torreya 18: 220-226. 16 D 1918. 
Nelson, J. C. Some Oregon exotics. Am. Bot. 24: 126-129. WN 1918. 
Ness, H. Hybrids of the live oak and overcup oak. Jour. He-edity 
9: 263-268. f. 6-8. 13 N 1918. 
Nichols, G. E., & St. John, H. Pressing plants with double-faced 
corrugated paper boards. Rhodora 20: 153-160. 4 S 1918. 
Nowell, W. Diseases of economic plants. West Indian Bull. 17: 
96-102. 1918. 
Osterhout, W. J. V. Conductivity as a measure of permeability. 
Jour. Biol. Chem. 36: 485-487. D 1918. 
