80 MASS. EXPERIMENT STATION BULLETIN 327 



dance of 3,872 persons from June 1 to October 30. The gardens have been 

 redesigned and many improved varieties have supplanted others less worthy. 



Horticulture School. (Harold E. White.) The fifth school for home 

 gardeners was conducted on April 9 and 10. The program was considerably 

 more diversified than had ever before been attempted and proved so successful 

 that in the future a very comprehensive group of subjects will be the rule. 



PUBLICATIONS 

 Bulletins 



315 Annual Report for the Fiscal Year Ending November 30, 1934. 84 pp. 

 March 1934. 



The main purpose of this report is to provide an opportunity for presenting in published 

 form, recent results from experimentation in fields or on projects where progress has not 

 been such as to justify the general and definite conclusions necessary to meet the require- 

 ments of bulletin or journal. 



316 Crossing Production and Exhibition Rhode Island Reds. F. A. Hays. 

 16 pp. January 1935. 



It is a widely recognized fact that production-bred Rhode Island Reds differ significantly 

 from exhibition-bred birds of the same variety in a number of specific characters The 

 purpose of this five-year study was to determine whether, through crossing, the characters 

 necessary for high egg production might be retained without the sacrifice of plumage color. 

 It was found that by crossing light-colored production-bred Rhode Island Reds with 

 exhibition-bred birds, followed by careful matings, a flock could be built up with rather 

 uniform medium-red plumage color and high egg production. 



317 Blueberry Culture in Massachusetts. John S. Bailey and Henry J. 

 Franklin. 20 pp. illus. February 1935. 



Wild blueberries are native to New England, but it is only within recent years that any 

 attempt has been made to develop improved varieties. Breeding work conducted by the 

 United States Department of Agriculture has resulted in the production of several named 

 varieties with fruit larger and more handsome than the wild. Although relatively few acres 

 of these named varieties have been planted in Massachusetts, there is a growing interest 

 in their culture which has led to an increased demand for information about them. This 

 bulletin is meant to serve as a guide to those interested in growing blueberries — whether 

 the newer cultivated varieties or the native wild berries. 



318 Onions in the Connecticut Valley. A. B. Beaumont, M. E. Snell, W. L. 

 Doran, and A. I. Bourne. 32 pp. illus. May 1935. 



Massachusetts has been one of the leading states in the production of onions for a 

 hundred years or more and their commercial culture in the Connecticut Valley dates back 

 to 1885. Prior to 1920 most of the onions of the Valley were grown from seed. Since that 

 time the acreage of onions grown from sets has increased rapidly, largely at the expense of 

 the acreage grown from seed. Among the practical problems facing the grower in the Con- 

 necticut Valley when these experiments were started were the use of lime, the choice and 

 method of applying fertilizers, the value of cover crops, spacing, growing of sets, and im- 

 provement of onions by breedng and selection, as well as diseases and insect pests. The 

 results of experiments concerned with these problems are reported in this bulletin. 



319 A Study of the Variation of Salmonella Pullorum. H. Van Roekel. 60 

 pp. illus. March 1935. 



Bacterial variation has played an important role in bacteriology and related fields of 

 science. From a practical point of view, and particularly in the diagnosis, control, and 

 eradication of human and animal diseases, it has presented problems of great importance. 

 Since bacterial variation has received little attention in the study of pullorum disease, the 

 investigation reported in this bulletin was undertaken to add to our knowledge on this 

 subject. 



