EXPERIENCES OF THE RUSSIAN GOVERNMKM. 56 



Chapel of Caius College, Cambridge, is ventilated by Mr. 

 Boyle's system, under the direction of Mr. Waterhouse. 



The chapel of Emanuel College, Cambridge, and St. 

 Mary Redcliffe, Bristol, are also ventilated by the system, 

 under the direction of Mr. Arthur W. Blomfield, who uses 

 the Air-Pump Ventilator extensively for churches, and 

 with so much success that he has presented Mr. Boyle 

 with the following testimonial : " I have used the Air- 

 Pump Ventilators of Messrs. Robert Boyle <fe Son with 

 satisfactory results. I believe the system to be a sound 

 and good one and capable of varied application." 



Saint Paul's Cathedral, the Bank of England, and the 

 Royal Exchange are in the long list of public edifices 

 supplied with Mr. Boyle's apparatus. 



The system of ventilation was applied by the Russian 

 Government to the Imperial Bank Note Manufactory, St. 

 Petersburg, and the experiment was found to be so successful 

 that it was also applied to the Imperial Mint, and the 

 Imperial State Papers Manufactory. The Russian officials 

 state that it is the only system they have ever tried which 

 has proved efficient and fully met their requirements. 



Wishing to test the opinion of the architectural profession 

 with respect to his system of ventilation, Mr. Boyle recently 

 wrote to each architect requesting that if any of his appliances 

 had been used, he (the architect) would state his experience. 



