INDEX. 



161 



Horses, digestibility and nieta1)oliz:iblo energy in feeds for 

 Human food: 



Canning investigations .... 



Microbiological investigations in milk 

 Insect limits in Massachusetts 

 In.sect outbreaks ..... 



Insecticides: 



Arsenical, burning of foliage by 

 Arsenical, chemistry of . . . _ . 



Lime-sulfur, dry, new method of analysis 

 Lime-sulfur, determination of best strength of 

 New materials ..... 



Nicotine sulfate dusts, efficiency of 

 Scalecide, possible injurious effect on trees 

 Insects: 



Codling moth, number of generations in Massachusetts 

 Cranberry ...... 



Digger wasps, economic importance 

 Onion maggot, control .... 



Scale, hatching dates .... 



Squash bug, control .... 



Squash \'ine borer, control 

 Land acquired: 



\Vm. P. Brooks Experimental Farm 

 Cornelia Warren Estate 

 Land needed: 



Cranberry station .... 



Pasture experimental work 

 Leaf characters of apple varieties . 

 Lettuce drop, methods of control . 

 Light, optimum conditions for plant response 

 Lime absorption and acidity of Field A . 

 Lime, methods and quantity of application 

 Mailing station publications 

 Manure economy tests .... 



Meteorological observations .... 



Meteorological studies: 



Area of late frosts as shown by insect distributi 

 Frost prediction ..... 



Recording of data .... 



Milk, microbiological investigations 

 Nitrogenous fertilizers, comparison of (Field A) 

 Nutritive value of grain hulls, improvement of 

 Onion diseases ...... 



Onion maggot, control .... 



Onion smut, relation of soil to occurrence of . 

 Onions, methods and cost of distribution 

 Orchards : 



Clover V. grass in a sod mulch orchard 

 Cover crops, test of ... . 



Cultivation v. heavy mulcliing for apples and pears 

 Cultivation v. sod mulch in a bearing orchard 

 Experiments in soil management and fertilization 

 Appendix ...... 



Graves Orchard: 

 Fertilizer treatment 

 Growth records .... 



Yield records .... 



Old Station Orchard: 



Correlation between growth and yields 

 Fertilizer treatment 

 Growth records 

 Orchard management 

 Quality of fruit 

 Soil management 

 Varietal response to treatment 

 Yield records 

 Results, discussion of 

 Summary .... 



Fertilization 



Fertilizers for pears 



Fertilizers in a sod mulch orchard 



Nitrate of soda, test of different amounts 



Pruning apples ..... 



Pasture experimental work, land needed for . 



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