APPENDIX E. clv 



its occurrence. Let us strive, then, to acquire a similar 

 knowledge concerning scarlet fever, small-pox, measles, 

 hooping-cough, and other contagious affections, and thus 

 endeavour, in the most efficient manner possible, to check 

 the ravages of these wide-spread and persistently pestilential 

 diseases, which are at all times and seasons undermining 

 the health and cutting short the lives of so large a propor- 

 tion of the human race. 



The Index will be found at page xxi of von. i. 



