8a P.D. 31 



Professor J. B. Lindsey and Assistant Research Professor J. G. Archibald. Results 

 have been pubhshed in Bulletin 223, "Milk Substitutes in the Rearing of Young 

 Calves," and in the article "Skim Millc Powders in the Rearing of Young Calves" 

 in Bulletin 230. Owing to the increasing sale of milk in a fluid form, it has been 

 difficult for Massachusetts dairymen to raise replacement stock; and on account 

 of quarantine restrictions it has also been difficult safely to purchase such stock. 

 This project, therefore, was instituted as part of a study to develop ways and means 

 of meeting the situation. The appearance on the market of artificially dried skim 

 milk of various kinds gives a satisfactory source of food which may meet the need. 



19. The value of inorganic calcium phosphate in the promotion of growth and 

 milk production. Professor J. B. Lindsey and Assistant Research Professor J. G. 

 Archibald. Results to date reported in the article "Mineral Matter for Dairy 

 Cows" in Bulletin 230; and in Scientific Contribution 46, "The Value of Calcium 

 Phosphate as a Supplement to the Ration of Dairy Cows." 



20. A stud}'' of the fundamental factors affecting adhesiveness, toxicity', and 

 general efficiency of copper fungicides. Research Professor E. B. Holland. A 

 partial report has been printed in Scientific Contribution 52, "The Preparation 

 and Effectiveness of Basic Copper Sulphates for Fungicidal Purposes." 



21. Study of nitrogen fixation in the presence of, or as the result of, growth of 

 legumes versus non-legumes under certain defined agronomic conditions. Re- 

 search Professor F. W. Morse. Carried on in coordination with Microbiology 4. 

 Some of the old fertilizer experiment plots of the Experiment Station, which have had 

 no fertilizer or other applied nitrogen for forty years, are being used in the study. 



24. Chemical changes which occur in the cranberry during ripening and after 

 harvesting. Research Professor F. W. Morse. 



25. Studying the mineral requirements for the growth of dairy heifers. Professor 

 J. B. Lindsey and Assistant Research Professor J. G. Archibald. 



Cranbernj. 



1. Injurious and beneficial insects affecting the cranberry. Research Professor 

 H. J. Franklin. One insect has been reported in Scientific Contribution 47, 

 "The Life History and Control of the Cranberry Weevil, Anthonomus Musculus 

 Say (Coleoptera: Curculionidae.) 



2. Cranberry disease work. (In cooperation wdth the Bureau of Plant Industry, 

 United States Department of AgTiculture.) Research Professor H. J. Franklin. 



3. Weather observations with reference to frost protection. (In cooperation 

 with the Weather Bureau of the United States.) Research Professor H. J. Franklin. 

 Frost warnings are sent out in the spring and fall at critical times, at the expense 

 of the growers. This represents an effective application of a difficult research 

 study in meteorology. 



5. Blueberry investigations. Research Professor H. J. Franklin. 

 Dairy Manufactures. 



2. A study of washing powders for dairy use. Assistant Research Professor 

 A. W. Philhps. 



3. The quinhydrone electrode in the dairy laboratory. Assistant Research 

 Professor A. W. Phillips. 



Ento7nology. 



10. Dates of hatching of scale insects and when to spray for them. Assistant 

 Research Professor A. I. Bourne. 



12. Determination of best strength of lime-sulfur. Assistant Research Professor 

 A. I. Bourne. Progress report, "Tests of Lime-Sulfur Solution and Some of Its 

 Substitutes against San Jose Scale," printed in Bulletin 226. 



16. Investigation of materials which promise value in insect control. Assistant 

 Research Professor A. I. Bourne. 



17. Control of onion thrips. Assistant Research Professor A. I. Bourne. Prog- 

 ress report, "A Study of the Life History and Control of the Onion Thrips," 

 in Bulletin 227. Field work on the control of onion thrips has been completed 

 with development of a spray which, applied properly, gives control. Unfortu- 

 nately, up to the time of writing, no machine has been developed capable of spraying 

 under high pressure on closely planted rows such as we have in the onion fields. 

 This project is being carried until such time as the proper machine becomes avail- 

 able, or can be developed. 



