320 THE CONTAGIOUS TYPHUS 



to the painful necessity of confessing his want 

 of means, when medicine could be nothing 

 more than an art, we admit ; but now that 

 science has grown up and come of age, society 

 has a right to challenge him to do, what in 

 past ages could not have been expected of him. 

 Briefly, we think that the time is come, by 

 blending comparative pathology with anatomy 

 and physiology, to construct one of the bases 

 of the tripod on which medical science will 

 have to rest. The success which has already 

 been achieved in this direction is a certain 

 guarantee for those which we may hope for 

 hereafter. 



Such is our deep conviction, and perhaps we 

 have some title to speak out decidedly on this 

 point, as we have long since exemplified our 

 precepts by actual proofs. 



Persuaded for many years that comparative 

 pathology afforded to industrious men a new 

 mine, rich in precious veins for working, w^e 

 several times endeavoured to explore this fertile 

 field. But, unfortunately, our means of action 

 not being consistent with our sanguine expec- 

 tations, we were repeatedly compelled to sus- 

 pend our pursuits, until at last we found at the 



