168 REPOET OF OFFICE OF EXPERIMENT STATIONS. 



tion of $50,000 for the bieimium was granted by the last legislature 

 for extension and demonstration work and a correspondence course 

 in agriculture. 



. Progress during the j^ear in the investigations under the Adams Act 

 is reported. In the study of food requirements in milk and beef pro- 

 duction, a vast amount of data is being accumulated as to the use 

 made of the feed and its bearing on standards for feeding. During 

 the year 18 animals were slaughtered for complete analysis. 



The work in the chemical department was interrupted hj changes 

 during the year, but studies were made on the humus in the series 

 of rotation plats as compared with those cropped continuously with 

 grain, and investigations were made on the combination of mineral 

 matter with humus in its relation to cropping, the idea being to 

 determine the effect of the growing crop on the humus content and 

 on its content of mineral matter. 



The entomologist continued his work on Bruchophagus funebjns^ 

 and inaugurated and used a successful method for accomplishing the 

 fertilization of clover blossoms rendered immune to the attacks of 

 insects, by using bumblebees inclosed with the blossom in cages. It 

 is believed that this is the first time that clover has been fertilized in 

 this artificial way. The work on Empoasca mail and Macrosiphiirrh 

 grmuma is practically closed out, and the results secured in the study 

 of the cabbage maggot were prepared for publication. 



The breeding project in horticulture was continued on the fruit- 

 breeding farm at Excelsior, an 80-acre tract about 25 miles from 

 the station. This farm is surrounded by lakes and is said to be one 

 of the best localities for orcharding in the State owing to the equi- 

 table temperature. The farm was purchased by the State, which 

 makes an annual maintenance appropriation of $2,000, and a special 

 appropriation for horticultural crops of $1,000. A large number of 

 strawberry seedlings were planted and selections made from them. 

 About 1,500 crosses of strawberries were made in the greenhouse and 

 the seeds planted. Several thousand plum and rasj^berry seedlings 

 are grown for comparison. Careful records are kept for the purpose 

 of securing data regarding inheritance of various morphological and 

 physical characters in the species and varieties under investigation. 

 As compared with its original outline, this project has broadened to 

 include a considerable number of fruits and has become very exten- 

 sive in scope. 



In the investigation of stable ventilation during this year, evidence 

 was obtained for the first time that an animal is apparently injured 

 by close confinement in an excessively foul stall and atmosphere. In 

 one animal there appeared quite regularly during the confinement 

 periods, various abnormal constituents in the urine, the most impor- 

 tant of which were blood and albumin. Viscosity of the blood was 



