Feb.. 1927] PROGRESS OF AGRICULTURAL EXPERIMENTS 41 



traumu, 14; tuberculosis avian, 1; tumors, 14; typhoid, fowl, 12; un- 

 known, 31; vent gleet, 4; watery chicks, 8. (The last term refers to 

 chicks that seem to fill the abdominal cavity up with water. The 

 thoracic cavity and subcutaneous tissues are very watery and the 

 chicks appear to be twice their normal size. Xo definite cause for 

 this condition has been determined.) 



Tests for contagious abortion of cattle numbered 129. 



White Diarrhea Tests — (Miscellaneous Income) 



Bacillary white diarrhea testing work was carried on by A. W. 

 Lohman and W. A. Higgins, who tested approximately 37.600 blood 

 samples from birrls throughout the state. 



Potato Seed Certification — i Misccllnripous Income) 



Owing in i)art at least to the narrow margin in price between potato 

 seed and table stock this year, only 46.85 acres of potatoes were entered 

 for certification and 44.85 acres jiassed the 2nd insi)cction. The work 

 was conducted by C). Butler and F. R. Clai'k. 



Miscellaneous Tests 



Several of the county agents have supplied themselves with equip- 

 ment for testing soil acidity in (he field. As a result only 80 samples 

 of soil were sent in for acidity tests by agents during the year. 



Samples of feeds, fertilizers, soils, peat, lime and minerals were sent 

 in by individuals in the state. Of these 42 were analyzed, involving a 

 total of 120 individual determinations. 



VETERINARY MEDICINE 



Paralysis in Chickens — iPurncll Fund) 



The i)ossible cause of i)oultry jiaralysis, which is generally prevalent 

 in New Hampshii-e. has been under investigaticm by E. M. Gildow 

 from the angle that it may be associated with the jiarasitic disease of 

 coccidiosis. This sttidy has Ix'cn taken u]) from four different view- 

 points. 



1. A i)ractical program was outlined for the prevention of infesta- 

 tion with coccidiosis in growing chickens. In order to determine how 

 successfully this could be accomplished and to detennine whether or 

 not birds grown free from coccidiosis would develop j^aralysis, two lots 

 of chickens were grown. One lot of 200 pullets was grown and matured 

 on a piece of land where coccidiosis and paralysis had existed in poul- 

 try the jirevious year, and 800 pullets were grown and matured on a 

 clean piece of land out of contact with any other source of poultry in 

 so far as was jiossible. Regardless of the care that was taken, the lot 

 grown on clean land developed coccidiosis to a slight extent during their 

 growing period and subsequently came down in a few instances wuth 

 paralysis. However, the* sum total of all of the paralytic causes in the 

 800 indlets has not as yet outnumbered those that developed in the 200 

 jiullets on the old piece of land. Therefore, it is safe to assume that 

 whether or not coccidiosis and paralysis are associated, the methods of 

 eliminating coccidiosis evidently rechice the amount of paralysis. 



