INDEX. 



31 



Bulletin 

 No. 



Potatoes — Continued . 

 classification — 



early efforts, work, etc 



key 



Ck)bbler group, characters, varieties, etc 



demand for varieties suited to various localities 



distillation in Prussia, quantity, 1855, 1865 



Early Ohio, group characters, varieties, etc 



Green Mountain group, characters, varieties, etc 



groups, characters and varieties 



Hebron group, characters, varieties, etc 



hill-selection — 



experiments 



for improvement 



improvement by selection, discussion and experiments.. 



male sterility, note 



origin of popular varieties, history 



Peachblow group, characters, varieties, etc 



Pearl group, characters, varieties, etc 



pollen-producing, scarcity, quality of product, etc 



production and consumption per capita, comparison 



with Germany 



reciprocal crosses, records 



Rose group, characters, varieties, etc 



Rural group, characters, varieties, etc 



seedling inheritance, experiments 



selection — 



experiments, deviation from types, etc 



for improvement, methods 



surplus, utilization in Germany 



Triumph group, characters, varieties, etc 



tuber-unit — 



plants, yields from different varieties, records 



selection, experiments 



selection for improvement 



Potomac River, movement of soil material, annual 



Pouree, tomato, manufacture, methods 



Prenolepis lomjicornia, destruction of vegetable seed in 



Porto Rico 



Pringle, C. G., potato breeding, work 



Processing foods for canning, commercial methods 



Prodenia ornithogalli, good plants, note 



Protoparte Carolina, occurrence on vegetables in Porto Rico . 

 Prunus — 



a lleqhanienna — 



davini, description, occurrence, and value 



description, distribution, etc 



disappearance, note 



American species — 



and hybrids, description 



distribution, map 



amerifana — 



description, habitat, early history, varieties, etc 



horticultural histfjry 



hybrids 



laruita, description and distribution 



See also Afjricots; Wild plum. 

 anfjUHtifolia — 



hybrids 



See also Chickasaw plum. 

 varmnn — 



de.Hf-rifjtion, value, varietiea, etc 



hybrids 



176 



1-3 



176 



4-5 



176 



4,5-6 



195 



2 



182 



4 



176 



4,8 



176 



4,10 



176 



4-13 



176 



4,8-9 



195 



32-35 



195 



27-28 



195 



21-29 



195 



10 



195 



3-6 



176 



5, 12-13 



176 



5, 11, 12 



195 



9-10 



195 



1 



195 



15-16 



176 



4,7-8 



176 



5, 10-11 



195 



20-21 



195 



22-27 



195 



27-29 



182 



11-16 



176 



4,6 



195 



30-32 



195 



29-32 



195 



27, 28 



180 



22 



196 



70 



192 



10 



195 



4 



196 



1-4 



192 



8 



192 



7 



179 



51-52 



179 



50-52 



179 



2 



179 



21-72 



179 



23 



179 



24-29 



179 



7,8.9 



179 



27 



179 



28 



179 



179 

 179 



43 



45-46 

 46 



