New York AqricuttuRAL Experiment STATION. 37 
animal food. The growth was over three times as rapid as under 
another ration in which most of the protein was: of vegetable 
origin with enough skim-milk curd added to supply about one- 
fourth of the total protein. . 
In the general vigor and health of the chicks there was some 
difference in favor of the animal food ration. ‘This difference was 
> 
very pronounced with the ducklings. 
PRODUCTION OF FIELD CROPS. 
The experiments on Long Island in the use of commercial fer- 
tilizers on potatoes have been continued with some enlargement. 
Three acres of land are now in use on each of four farms. A fer- 
tilizer experiment with onions was also carried on in 1898. 
Twelve acres of land on the Station farm are now devoted to a 
somewhat elaborate study of methods of maintaining fertility, and 
although two years’ results are already in hand, nothing will be 
published for some time, perhaps not for several years. 
BULLETINS PUBLISHED IN 1898. 
The following is a list of the bulletins issued by the Station for 
the year 1898: 
No. 148 — April.— Cottonwoou leaf beetle. Green arsenite. V. H. Lowe. 
Pages 24, plates 6. 
No. 144 — September.— A spraying mixture for cauliflower and cabbage 
worms. F. A. Sirrine. Pages 23, plates 6. 
No. 145— September.— Report of analyses of commercial fertilizers for 
the spring of 1898. L. L. Van Slyke. Pages 
‘ 101. 
No. 146 — November.— Some experiments in forcing head lettuce. 8S. A. 
Beach. . Pages 29, plates 4. 
No. 147 — December.— Variety tests of strawberries, raspberries and 
. blackberries. Wendell Paddock. Pages 18. 
No. 148 — December.— Report of analyses of commercial fertilizers for 
the fall of 1898. L. L. Van Slyke. Pages 27. _ 
No. 149— December.— The economy of using animal food in poultry 
feeding. W. P. Wheeler. Pages 20. 
No. 150 — December.—- I. The raspberry saw-fly. II. Preliminary notes 
on grape-vine flea-beetle. V. H, Lowe. Pages 
17, plates 7. 
