CONNECTICUT. 85 



was observed in the different proteids. Some of them sustained life 

 but did not produce growth, while others producing growth to a cer- 

 tain extent had nevertheless a stunting effect. None of the proteids 

 tried thus far would, if fed alone, produce normal growth. The re- 

 sults of the first year's experiments were published by the Carnegie 

 Institution of Washington, and those more recently obtained were 

 prepared for publication. Studies on the improvement of existing 

 methods for determining the proportion of the various amino acids 

 yielded by hydrolyzing proteids were continued, and the results ob- 

 tained published in scientific journals. In addition to this work the 

 study of the proteins of maize was begun and data of importance 

 were secured concerning proteins of some other seeds. 



The plant-breeding investigations included a continuation of the 

 study of the physiology of inheritance of important seed and plant 

 characters in maize. The study of the inheritance of seed characters 

 was in the main completed, and the study of the plant characters 

 yielded much of importance from a theoretical standpoint. The bio- 

 metrical work pursued for the purpose of determining the increased 

 vigor due to crossing nearly related strains of Nicotiana tdbacum was 

 about completed. The second generation of two tobacco crosses was 

 grown to determine the method of inheritance of plant characters 

 and also as a check upon the analysis of the Sumatra-Habana cross, 

 which resulted in the production of the Halladay variety. The in- 

 vestigations in plant breeding with the potato were closed out. 



A number of lines of work were carried on under the Hatch and 

 other fimds. The entomologist of the station in cooperation with this 

 department, and under a State appropriation, continued his work on 

 the gipsy moth. The colony of the insects at Stonington, which was 

 cleaned up last year, showed no moths this season. Attention was 

 also given to the study of the 17-year locust, the sawfly attacking 

 the blackberry, and the pyralid moth found on Japanese barberry. 

 Much of the time of this department is taken up by inspection and 

 control work, including apiary inspection and the inspection of 

 nursery stock brought into the State. 



The entomologist and the botanist jointly carried on spraying 

 experiments in 11 orchards located in different parts of the State 

 and in cooperation with their owners to determine the relative value 

 of summer sprays on apples and peaches. 



The botanist further made observations on the effect of spraying 

 with Bordeaux mixture in a dry season in combating potato blight. 

 Life-history studies of the disease were also pursued. The work on 

 the calico disease of tobacco was carried forward, and the observa- 

 tions on peach yellows were continued. It was found that in sum- 

 mer spraying for peaches self-boiled lime-sulphur and commercial 

 sulphur preparations may be substituted for Bordeaux mixture, 



