VI 



CONTENTS. 



Report of the department of chemistry — concluded. page 



Feed and dairy section, ......... 43a 



The feeding stuffs law, ......... 43o 



The dairy law, .......... 44a 



Milk, cream and feeds for free examination, ..... 47a 



Water, 47a 



Testing of pure-bred cows for advanced registry, .... 48a 



Numerical summary of laboratory work, ...... 50a 



Report of the department of entomology, ....... 51o 



Report of the department of horticulture, ...... 54a 



Report of the department of microbiology, ...... 55a 



Report of the department of poultry husbandry, ..... 57a 



Egg production, . . . . . . . • . . . 57a 



Student work, .......... 59a 



Report of the department of veterinary science, ..... 61a 



Testing of fowl for the detection of bacillary white diarrhcea, . . 61a 



Investigations relative to Bacteriujn pullorum infection, . . . 62a 



The value of anti-hog-cholera serum in the prevention of hog cholera, . 63a 



Part II. 

 Bulletin 173. The cost of distributing milk in six cities and towns in 

 sachusetts. 

 Foreword, .... 

 Introduction, .... 

 The problem, .... 

 Co-operative investigation, 

 Scope of the investigation. 

 Processing costs and delivery costs, 

 Difficulties in obtaining data. 

 Analysis of costs, 



Investment, 



Depreciation problems, . 



Maintenance, 



Working capital, . 



Labor, .... 



Costs of processing and delivering summarized 

 Costs classified by size and kind of business, 

 Investment and size of business. 

 Percentage analysis of costs. 

 Comparative costs by localities, 



Amherst v. Walpole, 



Haverhill v. Pittsfield, . 



Springfield v. Worcester, 

 The producer as a distributor, . 

 Cost of delivery of special milk, 

 Cost of collection and distribution of 



Motor truck delivery, . 

 Cost of distribution of cream, . 

 Significant facts of distribution, showing individual variations. 



Some obvious disadvantages of competitive distribution of milk 

 Suggestions for improving conditions, .... 



Bulletin 174. The composition, digestibility and feeding value of 

 kins, ......... 



Summary of the results, ....... 



Composition of the pumpkin, ...... 



Mas- 



wholesale milk in cans. 



pump- 



55 

 55, 56 

 57-62 



