58 Experiment Station Bulletin 363 



sometimes without retesting, and sometimes not changing the "date 

 tested," even though they have compHed with the law by having it re- 

 tested. 



Last fall and winter, considerable work was done with squash-seed 

 germination in co-operation with Dr. M. C. Richards of the Department 

 of Botany. Twelve different seed treatments were examined in an effort 

 to control excessive growth of mold during germination. The follow- 

 ing showed promise and will be used further: 



1452F (7.7% ethyl mercury p-toluene solfonanilide) 



Spergon (Tetrachloro-para-benzoquinone) 



Arasan (Tetramethyl Thiuramdisulfide) 



New Improved Ceresan (Ethyl mercury phosphate 57c) 



Three lots of referee samples have been run — one on the germina- 

 tion of soybeans, one on endive, and one on New Zealand spinach. This 

 studv of different methods for germinating New Zealand spinach is es- 

 pecially interesting because it is one of the most difficult seeds to germi- 

 nate in the laboratory, due to the spongy covering on the seed. The 

 present method prescribes running the test 28 days in moist sand. Boxes 

 of sand are heavy, require more space than blotters, and hold that space 

 for a month; thus, a shorter method would be more helpful. 



B. G. Sanborn 



Potato Seed Certification 



Aid was given the State Department of Agriculture in the field in- 

 spections of potato fields proposed for certification in the Colebrook 

 area. Two inspections were given during the growing season to the total 

 of 130 acres and all passed. The work was done jointly with C. A. Lyon. 

 Inspector in the Bureau of Markets. It is expected that Mr. Lyon will 

 now carry on the work alone. 



Another change was inaugurated in regard to testing samples of seed 

 potatoes. Instead of a greenhouse test at Durham, arrangements were 

 made by the Commissioner of Agriculture to send samples, along with 

 those of New York state, to Florida for a disease reading. 



Stuart Dunn 



Autopsies at Poultry Laboratory 



During the fiscal year 1944-45. 2290 specimens, plus 312 milk sam- 

 ples, were submitted to the Poultry Laboratory for diagnosis. These 

 consisted of 9^8 cases and eight lots of milk samples. 



A total of 1951 cliickens were examined, 1692 (520 cases) from poul- 

 trymen and 239 from the University of New Hampshire flock. The re- 

 mainder of the specimens consisted of 256 turkeys (86 cases) and 83 mis- 

 cellaneous specimens. 



A. C. CORBETT, D.V.M. 



