PREFACE. 
IX 
of the most crowded cities would prove of incal- 
culable advantage in numerous diseases.” The 
same arguments were used by Sir Joseph Paxton 
and others in 1851, with reference to the pre- 
servation of the Crystal Palace, and the erection 
of a Sanatorium for the use of the Hospital for 
Consumption. As this is a subject of vital im- 
portance, the Author hopes he may be pardoned 
in directing the attention of medical men to the 
possibility of constantly surrounding patients 
with a pure atmosphere, which, he imagines, 
will eventually be effected by a combination of 
vital and chemical forces. It is his firm con- 
viction that, with the progress of science, any 
climate on the face of the earth will be readily 
imitated and maintained. The use of the Sana- 
torium, as recommended by Sir J oseph, would 
certainly not be of service in all cases of pul- 
monary complaint, as the atmosphere of the 
Sanatorium and of the Hospital would neces- 
sarily be very different. 
A most pleasing duty remains to be fulfilled : 
— To the Viscount Downe his thanks are espe- 
cially due for having enabled him to establish 
some closed cases amongst the poor of his old 
neighbourhood, under the kind superintendence 
of his esteemed friend, the Rev. Mr. Quekett. 
In addition to those friends whose names are 
