y. Does scab iucretiso on potiiloes lying in the earth, til'ter the tops 

 are dead ? 



10. What remedies for scab have you ever tried, or what precau- 

 tions agaiust its attacks have you ever taken, and with what result? 



11. What ideas or opinions, based ou experience, do you enter- 

 tain as to the nature or cause of this trouble, which you think worthy 

 of consideration ? 



12. What information can you give regarding the disease under 

 consideration which is not called for by the above questions? 



Inquiries, specimens, and answers to the above questions should 

 be addressed to 



JA8. ELLJ8 HUMPHREY, 



Prof, of Vegetable Physiology, 



Amherst, Mass. 



CREAMERY RF:C0RD OE THE STATION DURING TIJE 

 YEARS 1887 AND 1888. 



021. In a preceding bulletin, No. 32, has been published a milk 

 record of twelve cows, grades, which had served during pastyears for 

 feeding exeriuients at the station. It was stated on that occasion that 

 the i)rimary object at that time was to test the comparative merits of 

 corn fodder, corn stover, corn ensilage, and root crops in the whole 

 or in part, as circumstances advised, as substitutes for a good mea- 

 dow hay, as far as quantity, quality and cost of production of milk 

 are concerned. The cows selected for that investigation were, for 

 stated reasons of moderate milking qualities. The fitness of the va- 

 rious animals for our purpose ceased, in turn, whenever the period of 

 time between the day of calving and the day of observation had 

 reached the point where constitutional changes in their life threat- 

 ened to interfere, more or less seriously with a clear demonstration 

 of the special nutritive effect, as far as the production of milk is con- 

 cerned, of any particular change in their dail}' diet. As existing con- 

 ditions did not advise any increase of our dairy stock, the cows 

 were usually sold on fair terms for our locality. The conclusions 

 arrived at in consequence of our observations were clearly qualified 

 by a detailed statement of the course we felt obliged to adopt in 

 our position. Our financial results, although obtained under some- 

 what exceptional circumstances, were published with full recognition 



