444 Transactions of the American Institute. 



mixed with it. Butter thus prepared, it is said, may be kept for two 

 years witliout the slightest change. The chemist Thenard recom- 

 mends a simihir plan with the entire omission of the salt. His direc- 

 tions are, to melt the butter at a heat not exceeding 140®. This 

 should be kept up until the cheesy matter has settled to the bottom. 

 The butter will then be perfectly transparent, and after being 

 strained through a cloth must be cooled with ice or cold spring 

 water ; in this condition it may be kept sweet for six months or more, 

 but in order to restore to it the taste of fresh butter it must be care- 

 fully worked with one-sixth its weight of cheesy matter ])revious to 

 use. The same author asserts that the bad taste and odor of rancid 

 butter may be in a great measure removed by meltin;^; and cooling it 

 in this manner. 



Another, but very different mode of curing butter, is to make a 

 mixture of one part sugar, one of nitre, and two of the best rock 

 salt, rolled together to a fine powder, and incorporated in the fresh 

 butter, in the proportion o? one ounce to sixteen. This butter does 

 not taste well until it has stood for three or four weeks, after which, 

 it acquires a rich marrowy flavor. 



In closing these remarks on the preparation of butter, the neces- 

 sity may be noted of keeping it awaj'' from all bad smells or foul 

 gases, which it is very liable to absorb. Care should therefore be 

 taken that no tainted meat, decaying vegetables, stagnant water, or 

 other scource of effluvia, be tolerated where the golden colored is 

 stored awaiting market day. 



Dr. J. Y. C. Smith moved a vote of thanks to Prof. Whitney for 

 his valuable paper, which was adopted. 



Adjourned. 



July 27, 1869. 



Nathan G. Ely, Esq., in the chair ; Mr. Johu W. Chambeks, Secretary. 

 The first business in order was the reading of a letter from Mr. 

 J. G. Gebhard, of Schoharie Court House, N. Y., which had refer- 

 ence to 



Pulverized Suale as a Pest Destkoyek. 



Our readers may remember that the subject was considered at a 



previous meeting, and it was suggested that the gentleman who 



claimed to have made the discovery be invited to send some of the 



article for trial by members. On tins hint he acted, and a score or 



