ANNUAL REPORT, 1933 65 



303 Effect of Hydrocyanic Acid Gas on Cucumber Plants Previously Sprayed 

 with Copper Fungicides. E. F. Guba and E. B. Holland. 16 pp. illus. 

 December, 1933. 



The control of fungous diseases and insect pests of cucumbers in greenhouses frequently 

 requires the use of copper fungicides and hydrocyanic acid gas. Complete destruction of 

 greenhouse cucumber plantings has occurred in Massachusetts in some instances from such 

 treatment. The only copper sprays which did not cause injury when followed by hydro- 

 cyanic acid gas were commercial basic copper carbonates, basic copper sulfates, and non- 

 staining ammoniacal copper sprays. If other copper fungicides are used, fumigation with 

 hydrocyanic acid gas should precede the copper spray in order to avoid injury. 



304 Secondary Milk Markets in Massachusetts in the Period of Falling Prices, 

 1930-1932. David Rozman. 20 pp. illus. December, 1933. 



The bulletin deals with the analysis of marketing problems arising largely from changing 

 conditions of the milk supply in secondary markets of Massachusetts, represented by- 

 Gardner, Attleboro, and Newburyporl. The most disturbing factors for the maintenance 

 of stability in the secondary markets were found to be the influ.x of outside milk and the 

 increasing number of producers entering the distributing field. The attempt to maintain 

 a stable price level in the small markets independently of the general market trend has 

 generally met with little success. The average net price obtained by producers for their 

 milk in the summer of 1932 was 4 1 cents per quart in Gardner, 6 cents in Attleboro, and 4.8 

 cents in Newburyport. The highest percentage spread between these and prevailing 

 retail prices was in Gardner and the lowest in Newburyport. The milk marketing set-up 

 prevailing in Newburyport, where most of the producers sell their milk to small dealers and 

 distributors, largely their neighbors, was found to be the most economical for a small market. 



Control Bulletins 



67 Seed Inspection. F. A. McLaughlin and Margaret E. Nagle. 47 pp. 

 February, 1933. 



68 Thirteenth Annual Report on Eradication of PuUorum Disease in Massachu- 

 setts. The Poultry Disease Control Laboratory. 8 pp. August, 1933. 



69 Inspection of Commercial Fertilizers. H. D. Haskins. 46 pp. November, 

 1933. 



70 Inspection of Commercial Feedstuff's. Philip H. Smith. 58 pp. Decem- 

 ber, 1933. 



71 Inspection of Agricultural Lime Products. H. D. Haskins. 8 pp. Decem- 

 ber, 1933. 



Meteorological Reports 



529 - 540, inclusive. Monthh- reports giving daily weather records, together 

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



Reports of Investigation in Journals 



(Numbered Contributions') 



138 Nutritive Value of Cranberries. Carl R. Fellers. Amer. Jour. Pub. 

 Health 23:13-18. January, 1933. 



140 Bronchitis of Baby Chicks. Charles S. Gibbs. Poultry Sci. 12:46-48. 

 January, 1933. 



141 The Desiccation and Preservation of Infectious Laryngotracheitis Virus. 

 Charles S. Gibbs. Jour. Bact. 25:245-251. March, 1933. . 



142 The Distribution of Nitrogen in Tobacco When the Supplies of Nitrogen 

 and of Light Are Varied During the Growing Period. Walter S. Eisen- 

 menger. Jour. Agr. Research 46:255-265. February 1, 1933. 



143 Some Factors Affecting the Palatability of Pasture Plants. A. B. Beau- 

 mont, R. E. Stitt, and R. S. Snell. Jour. Amer. Soc. Agron. 25:123-128. 

 February, 1933. 



