ANNUAL REPORT, 1944-45 67 



421 The identification of pear varieties from non-bearing trees. By Lawrence 



Southwick, A. P. French, and O. C. Roberts. 51 pp. illus. November 

 1944. 



The identification of varieties before fruit trees leave the nursery is 

 important if disappointments in the orchard are to be avoided. This 

 bulletin considers the characteristics by which nursery pear trees may be 

 identified and records descriptions of 47 varieties and photographs of 

 41 varieties. 



422 The beach plum in Massachusetts. By John S. Bailey. 16 pp. illus. De- 



cember 1944. 



The beach plum industry on Cape Cod and the islands of Nantucket 

 and Martha's Vineyard has developed to the point where there is a demand 

 for improved plums and better methods for growing them. This bulletin 

 reports work done to satisfy this demand. 



423 Factors affecting annual egg production. By F. A. Hays. 12 pp. Decem- 



ber 1944. 



Modern methods of poultry breeding are based on specific characters 

 that affect egg production. This study was undertaken for the purpose 

 of developing more accurate methods of selecting birds for breeding pur- 

 poses where the primary object is increased egg production. 



424 The culture of set onions in the Connecticut Valley. By W. G. Colby, 



C. J. Gilgut, and H. M. Yegian. 16 pp. illus. April 1945. 



The weather conditions peculiar to the Connecticut Valley and cul- 

 tural practices influenced thereby have a definite effect on the yield, 

 appearance, and keeping quality of onions. These practices and their 

 influence are discussed here. 



425 Grass silage. By J. G. Archibald and C. H. Parsons. 11 pp. illus, April 



1945. 



The storing of grass and legume crops as silage has become an accepted 

 practice. This bulletin, a revision of an earlier issue, reports the most 

 recent findings oji the subject. 



426 Botulism and home canning. By William B. Esselen, Jr. 28 pp. April 



1945. 



In order to answer some of the many questions which have been raised 

 concerning botulism and home-canned foods, a summary of available 

 information is presented. 



427 Carnation wilt diseases and their control. By E. F. Guba. 64 pp. illus. 



June 1945. 



Wilt diseases cause serious losses in greenhouse carnation culture in 

 Massachusetts. This bulletin is intended to help the carnation grower 

 understand these diseases and to acquaint him with proven control meas- 

 ures. 



Control Bulletins 



120 Twenty-fourth annual report of pullorum disease eradication in Massachu- 

 setts. By the Poultry Disease Control Laboratory. 12 pp. July 1944. 



121 Inspection of commercial feedstuffs. By Feed Control Service Staff. 28 pp. 

 September 1944. 



122 Inspection of commercial fertilizers and agricultural lime products. By 

 Fertilizer Control Service Staff. 28 pp. September 1944. 



123 Seed inspection. By F. A. McLaughlin. 41 pp. December 1944. 



Meteorological Bulletins 



661-672, inclusive. Monthly reports giving daily weather records, together with 

 monthly and annual summaries. By C. I. Gunness. 4 pp. each. 



