OVERTHROW OF THE SUBTLE DESTROYER. 101 



of Euston Road. Still the business grew apace, orders 

 multiplied, from every part of the world the mails brought 

 fresh commissions, the owners of mansions, churches, 

 factories, and workshops anxiously sought the firm to 

 rescue them from the miseries of bad ventilation, and thus 

 the resources of the works were in time insufficient to 

 meet the growing strain, and a more spacious factory has 

 now been provided, the Glasgow works being also enlarged 

 four times its former capacity. 



Such an extraordinary development demonstrates beyond 

 all question a steady improvement in sanitary matters, and 

 at the same time reflects great credit on Mr. Robert Boyle's 

 administration. The welfare of his business means the 

 welfare of the public, and its practical development means 

 the overthrow of that subtle destroyer vitiated and poisoned 

 air. For this reason, many distinguished persons in this 

 and other countries, anxious to encourage the movement, 

 have honoured Mr. Boyle with special marks of approval. 

 Quite recently, we understand, H.R.H. the Crown Prince 

 of Sweden has expressed great interest in the inventions ; 

 and during his visit to this country, the Prince of 

 Montenegro also evinced his gratification at their ingenuity, 

 having made an examination of them with a view to their 

 adoption in his own country. 



It is satisfactory to leam that Mr. Robert Boyle has no 



