150 KEPOKT OF OFFICE OF EXPEEIMENT STATIONS. 



LINES OF WORK. 



The lines of work pursued at the New York State Station during the 

 past year have been similar in general character and in many respects 

 identical with those noted in previous reports. They include studies 

 of the diseases of plants, especially treatment of asparagus rust, onion 

 smut, and the black rot of cabbage and cauliflower; also investigations 

 of raspberry cane blight and Rhizoctonia stem-rot diseases of various 

 plants; entomological studies upon the life history and remedies for 

 San Jose scale and tests of the effect of hydrocyanic-acid gas upon 

 buds, flowering shrubs, and nursery stock, with other studies upon 

 the life histories and remedies for the destructive pea louse, palmer 

 worm, fruit-tree bark beetle, wheat sawfly, cherry fruit fly, wheat 

 aphis, Hessian fly, and woolly aphis, and investigations upon the 

 development of the sexual and parthenogenetic eggs of plant lice. 

 Tests have been made of commercial fertilizers for onions; of systems 

 of maintaining fertility, including the use of legumes, the necessity of 

 the supply of ingredients in commercial fertilizers and comparison of 

 commercial fertilizers and barnyard manure; foraging power of plants 

 for phosphoric acid; nitrogen gathering power of legumes in ordinary 

 conditions in good soil; influence of different forms of plant food upon 

 the quality of fruit; effect of farm manures on the sugar content of 

 sugar beets. Studies have been made on food sources of milk fat; 

 metabolism in milch cows; influence of temperature and moisture upon 

 loss of weight in curing cheese: influence of size of cheese upon loss 

 of weight in curing; proteolytic changes taking place in cheese ripen- 

 ing under different conditions of temperature and moisture; separa- 

 tion and identification of proteid bodies formed in curing cheese; pro- 

 teids in whey; proteolytic changes in milk inoculated with various 

 micro-organisms; changes taking place in the production of cider vine- 

 gar; bacteriological studies and tests relating especially to cheese ripen- 

 ing and cheese faults; a study of enzym action of bacteria and galactase 

 in cheese ripening. 



Experiments have been conducted in poultry feeding in continuation 

 of a series with special reference to the effect of mineral nutrients; 

 others related to the use of bulky foods, limitations in the use of ani- 

 mal foods with ducklings, breeding experiments with poultry to study 

 the effect of selection and inbreeding. Investigations have been con- 

 ducted upon the self -fertility of the grape; in plant breeding, princi- 

 pally of grapes and small fruits; in thinning fruit; spraying in bloom; 

 pollination of tomatoes in the forcing house; commercial fertilizers 

 and stable manure for forcing lettuce and for apple orchards; irriga- 

 tion for strawberries; propagation and culture of chestnuts; testing 

 varieties of fruits, and in tillage v. mulching for strawberries. 



The station has continued to cooperate with the Bureau of Chemistry 



