Ve are ee Sea eee Se eee ee Stee ee mee 
13 } ow 
[G, ee] 16. Pollination and devices for cross and self=pollination. 
Ls, 
’ 
17. Consdrvation theory and practice (See le 5 for farmland 
ey 
de Reproductive processes. 
le 
2. Sexual reproduction, general, and sex differentiation. 
conservation practice; see Ady for "popular" works). 
Ro foateor Cen 
Vegetative reproduction and propagatioh. ( Anh ; a 
? 
se we 
4 
e 
J 
Heterospory, homospory and alternation of generations. 
° 
Ph 
Fertilization, fusion phenomen, ete. 
e3 Reproduction of thallophytes, conjugation, cosporic, 
carposporic, and zygosporic reproduction. 
«4 Reproduction in bryophytes and pteridophytes. 
«5 Reproduction in gymnosperms. 
6 Reproduction in angiosperms, general. 
+61 Development of pollen grains of microspores and pollen. 
262 Development of megaspores and embryo sac. 
Pathology, general texts, apparatus, and general addresses. 
l. 
26 
36 
4. 
5. 
Bacterial, virus, and fungous diseases (monographs, etc.). 
Non-parasitic diseases (no teratology and ecology = for these 
see Fc and Gc), smoke damages 
Prevention, control and quarantine. 
Galls and gall insects (for injurious insects see M). 
Resistance and immunity. 
H, Biographies and collected writings. 
Ae 
b. Collected works and "Festschriften".““““**) +t Apunthy ha, 
ce History of science. 
l. 
History of botany. Ne « Won- , tenn Anica 
Biography ! 
Ait, Qteet std wayptt ur Bin der eney 4, ofharg ov 
l. Individual | Boa ts | , | 
2. Collected Aarhoee a Mele ie Sie fas 
