542 TRANSACTIONS OF THE AMERICAN INSTITUTE. 



Per cent. 



Walnuts _- 64.8 



Hazel nuts = 59.4 



Cotton seed _ 18.4 



Eggs 27.8 



What is Saleratus ? 

 Wood is Inirnt to ashes, are lixivated, and ley is the result. 

 Ley is evaporated by boiling, black salt is the residuum. The salt 

 undergoes purification by tire, and the potash of commerce is 

 obtained. By another process we change potash into pearlash. 

 Now put these in sacks and place them over a distillery mash-tub, 

 where the fermentatiou evolves carbonic acid gas, and the pearlash 

 absorbs it and is rendered solid ; the product being heavier, 

 wdiiter and drier than the pearlash. It is now saleratus. How 

 much salts of ley and carbonic acid gas one can bear and remain 

 healthy, is a question for a saleratus eater. Some people say 

 saleratus Avill not harm the stomach. It is a ley. 



Beefsteak Crusher. 



This machine, invented by J. J. Doyle, of Sharon, Conn., Avas 

 exhibited. It consists of two iron rollers covered with teeth, 

 between which the meat is to be drawn, previous to its being 

 cooked, in order to make it tender. It is designed to do the work 

 generally accomplished by pounding the meat. 



Dr. Bradley thought there ivould be difficulty in cleaning the 

 toothed rollers after each use of it. The cleaning would have to 

 be thorough, carrying off all traces of the fluids from the meat. 



Card Holder. 

 Mr. A. A. Marks exhil)itcd a card board on which were a series 

 of buttons, held by springs on the back side of the board, and so 

 arranged as to clasp tightly any cards that were placed partly 

 under them. The board would hcdd a very large number of 

 business cards, and would be useful to a merchant. 



Feathered Paddle AViieel. 



Mr. Hicks exhibited his plan of a feathered paddle wheel, which 

 he claimed required less parts than those now in use. In other 

 wheels there were joints to each paddle. In this only two joints 

 were required for the whole wheel. 



jNIr. Normau Wiard thought that chips of wood would be apt 



