602 Transactions of the American Institute. 



Mr. Overton remarked that large quantities of beef had been 

 successfully prepai'ed in this way for Northern markets. 



Prof. Vanderweyde observed that the chloride of zinc was used. 



Mr. T. D. Stetson said the great difficulty in any preserving pro- 

 cess was to get all the particles in direct contact with the anti- 

 septic. Much less salt was required in cold weather than in warm 

 to effect preservation of fish. 



WATER METER. 



Mr. James Cochrane exhibited his water meter, which is an 

 improvement on that shown by him some years ago, at the fair of 

 the American Institute. The improvement consists in aerating the' 

 water as it is delivered from the meter, so as to make it more pal- 

 atable. 



Dr. D. D. Parmelee said, in this plan, the aeration is done in the 

 lowest part of the house, where the meter is placed, and where the 

 air is very impure. 



Dr. Edwards spoke of the gi-eat care used in London to prevent 

 the wasting of water. As a general rule, each house has a cistern, 

 which is supplied with water every two weeks. The remarks of 

 the Doctor showed the great need of new aqueducts for the supply 

 of Loudon. 



Dr. Parmelee said that the effect on Croton water remaining in 

 common lead pipe for twenty-four hours, would be shown at the 

 next meeting. 



TELLURIUM, A METAL. 



Dr. L. Bradley, of Jersey City, to whom was handed the speci- 

 mens of tellurium exhibited at the Pol3i:cchnic, by Dr. Feucht- 

 wanger, said: I have tested the power of tellurium for conducting 

 electricity, by comparing it with several other substances. I pro- 

 cured pieces of about the same dimensions [half-inch square by 

 three-fourths of an inch long] of zinc, magnesium, cast iron gra- 

 phite, several pieces of coke, black oxide of manganese, sulphuret 

 of antimony, and sulphur; also, an appliance for conveniently con- 

 necting them, one at a time, into a circuit of short coarse wire, 

 designed to conduct a current of electricity generated by four cups 

 of Hill's battery. The battery being arranged as a compound bat- 

 tery, i. e., the positive pole of one cup connected with the negative 

 of the next, and so on, and using the tangent galvanometer for 

 intensity, I used the following deflections, viz: 



