New York Agricultural Experiment Station. 303 



while at the Station seed treated with the 5 per cent solution 

 gave 0.6 per cent. With the 3 per cent potassium sulphide solu- 

 tion the result at Trumansburg is 1.4 per cent and at the Sta- 

 tion 0.9 per cent of smutted heads. These results show a slight 

 difference in favor of the work done at the Station. There was 

 also less smut on the untreated plats at the Station, 10 per 

 cent being the highest. At Trumansburg the untreated plats 

 gave 11.8 per cent of smutted heads. 



COST OF MATERIALS. 



Lysol. — This material can be purchased in small quantities 

 for about 65 cents per pound, or pint. In carboy lots it sells 

 for about 30 cents per pound. 



The 1 per cent treatment, sprinkled, will cost about 5 cents 

 per bushel of seed. 



In soaking the seed in a solution of 1 part in 1,000 the cost 

 is O.o cent per gallon of the solution. 



Formalin. — Formalin a,nd the " 40 per cent Solution of 

 Formaldehyde Gas " are exactly the same material, but in pur- 

 chasing it is well to ask for the latter, because it is quoted much 

 lower in price than formalin.* The 40 per cent solution of 

 formaldehyde gas sells for about 50 cents per pound, or pint, 

 in small lots, and in carboy lots for about 30 cents per pound. 

 The material for one gallon of the 1 per cent solution costs 4 

 cents. A gallon of the solution 1 part in 1,000 costs 0.4 cent. 



Potassium sulphide may be obtained for about 18 cents per 

 pound. A gallon of 1 per cent solution will cost a trifle less 

 than 1.5 cents. The same amount of solution 1 part in 1,000 will 

 cost less than 0.2 cent. 



Ceres powder is put up in bottles holding one kilogram or 

 2.2 pounds. A single bottle sells for $1.50 and a lot of ten for 

 |10. The rate per ounce for single bottle is about 4.25 cents. 

 This is sufficient for one gallon of the solution necessary for 

 sprinkling one bushel of seed as advocated by the manufac- 

 turers. A gallon of the 1 per cent solution requires 1.28 ounces 

 and costs nearlv 5.5 cents. 



•De Schweinltz, E. A., Year Book U. S. Dept. Agr., 1896, p. 262. 



