406 INDEX TO AMERICAN BOTANICAL LITERATURE 
Godfrey, G. H. Gray mold of castor bean. Jour. Agr. Research 
23: 679-716. p!. I-13 + f. 1-5. 3 Mr 1923. 
Gruner, J. W. Algae, believed to be Archean. Jour. Geol. 31: 
146-148. f. 3. Mr 1923. 
Haas, A.R.C. Pot culture with barley in soil from a long-time 
fertilizer experiment. Bot. Gaz. 75: 95-102. f. 1-4. 23 
Mr 1923. 
Haley, D. E. Availability of potassium in orthoclase for plant 
nutrition. Soil Sci. 15: 167-180. Mr 1923. 
Harlan, H. V.,& Pope,M.N. The use and value of back-crosses 
in small-grain breeding.. Jour. Hered. 13: 319-322. 10 
Mr 1923. 
Harter, L. L., Lauritzen, J. I., & Weimer. J. L. Motile necrosis 
of sweet potatoes. Phytopathology 13: 145,146. 13 Mr 
1923. 
Harter, L.L.,& Weimer, J.L. Anylase in the spores of Rhizopus 
Tritict and Rhizopus nigricans. Am. Jour. Bot. 10: 89-92. 
2 Mr 1923. 
Haupt, A.W. Cell structure and cell division in the Cyanophy- 
ceae. Bot. Gaz. 75: 170-190. pl. 7. 20 Ap 1923. 
Hayes, H. K. Inheritance of kernel and spike characters in 
crosses between varieties of Triticum vulgare. Univ. 
Minnesota Stud. Biol. Sci. 4: 163-184. Ja 1923. 
Heald, F. D., Zundel, G.L., & Boyle, L.W. The dusting of wheat | 
and oats for smut. Phytopathology 13: 169-183. f. 1- 
4 Ap 1923. 
Heard, O. O. Schweinitzia. Maryland Acad. Sci. Bull. 3°: 
9, 10. Ap 1923. 
Hensel, R. L. Recent studies on the effect of burning a grass- 
land vegetation. Ecology 4: 183-188. f. 7. 31 My 1923. 
Hoffer, G. N., & Carr, R. H. Accumulation of aluminum and 
iron compounds in corn plants and its probable relation 
to rootrots. Jour. Agr. Research 23: 801-824. pi. I-21. 
10 Mr 1923. 
