ANNUAL REPORT, 1930 235 



records of the City Inspector's Office. Changes in price and inspection 

 had very little influence in changing the milk-shed area. More milk is 

 being produced at great distances from the city and less in the vicinity 

 of the city. The consumption of quality milk is increasing. 



Analysis of Market Prices for Massachusetts Vegetables. (H. B. Rowe). 

 A preliminary analysis has been made of the price and supply data which 

 vi^ere tabulated last year for ten of the more important vegetables on the 

 Boston market, and a more complete study of asparagus prices has been 

 practically completed. The preliminary analyses indicate that valua"ble 

 results may be expected for all but two of the ten crops. The asparagus 

 study has furnished quantitative measurements of the relationship between 

 local prices and the two most important price factors, local supply and 

 shipped-in supply, during the period just preceding the local marketing 

 season. Knowledge of these relationships makes possible the interpretation 

 of outlook for local producers, with a degree of accurac}* and reliability 

 which could not be attained heretofore. 



DEPARTMENT OF AGRICULTURAL ENGINEERING 

 C. I. Gunness in Charge 



Investigation of Apple Storages. (C. L Gunness). The investigation 

 of mechanically refrigerated storages has been carried on this year along 

 two distinct lines. The phase pertaining to the temperature requirements 

 for satisfactory storage has been continued in cooperation with the Depart- 

 ment of Pomology. The results of two years' observation wi'l be avail- 

 able at the end of the present storage season. 



The study of another phase of the storage problem was made possible 

 this year through the fact that three fruit growers installed mechanical 

 refrigeration on their farms, and careful observation has been made of 

 the operation of these storages. Different types of equipment have been 

 installed in these various storages, and it has been possible to observe the 

 effect of various types of equipment on the stored fruit. Data on the cost 

 of operation of the various storages are being collected. 



Fertilizer Distributors. (C. I. Gunness). Very little work has been 

 done on this project during the present year. It is hoped that more time 

 can be given to this project during 1931. 



Test of Low-Lift Pumps. (C. I. Gunness). During the past summer a 

 testing plant was built at the Cranberry Station at East Wareham for the 

 testing of low-lift pumps. This was completed in August, and one pump 

 was tested. The publication of the results will be delayed until additional 

 pumps can be tested. 



