MECHANICS AND MANUFACTUEED ARTICLES. 



Yl 



floor, instead of the ceiling, and causing the air of the 

 room to pass out through the chimney of the furnace, 

 a great saving of heat is secured — an equable temper- 

 ature diffused — and the power of tempering and 

 regulating the Avhole to any degree desired perfectly 

 attained. It may also by the attachment of a cheap 

 fixture, be made to serve the purpose of a ventilator in 

 the summer, ^vhen it may become necessary to close 

 the doors and windows to exclude light and dust. It 

 also possesses the additional merit of securing, by the 

 constant and steady current of air over the radiators 

 the preservation of the healthy and vitalizing proper- 

 ties of the atmosphere, wdiile the air is rendered pure 

 throughout, and is of equal temperature at the floor 

 and ceiling. 



Another recent innovation worthy of notice, but not 

 received in sufficient season to be the suliject of a 

 gratuity, is " VVinship's Self Ventilating Eefrigerator,'^ 

 exhibited by Messrs. A. J. Spooner & Co. Based 

 upon the principle of the condensation of air by cold, 

 a thorough ventilation is secured by a mode as simple 

 as admirable. The fresh air from without is admitted 

 to the ice chamber, and is there condensed and passes 

 to the meat chamber and thence out through its 

 appropriate register, so that a constant current from 

 above downward is secured. The advantages of this 

 method of ventilation, both in point of cleanliness, 

 and the preservation of articles of food placed within 

 it, are too obvious to require comment. Each article of 

 food can preserve its own appropriate flavor without 

 partaking of those which preceded it. 



The elegant dental workmanship of Messrs. Palmer 



