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PREFACE. 



Soon after the lamented death of Surgeon-Major T. E. Lewis, on the 7th 

 May, 1886, a general feeling arose among his friends and colleagues, that 

 immediate steps should be taken to commemorate the life and work of one 

 who contributed so largely to scientific medicine, and whose death was due 

 to fatal illness contracted while in the active discharge of his duties. 



Various proposals having been brought forward and discussed, it was 

 suggested that no more suitable memorial could be devised than the 

 issue of a reprint of Dr. Lewis's scientific reports and papers, with his 

 portrait as a frontispiece, and with a biographical notice. Such reprint 

 would be of the greatest benefit to scientific workers pursuing similar lines 

 of inquiry, as it would place within their reach valuable original researches 

 now scattered throughout the Eeports of the Sanitary Commissioner with 

 the Government of India, in Indian journals, and in other publications 

 procurable with difiiculty, and absent from many scientific libraries. 



This proposal was at once unanimously adopted, a Committee was formed, 

 and soon afterwards circulars were printed and issued to the officers of the 

 Army and Indian Medical Services and private friends, inviting them to sub- 

 scribe for copies of the work ; and to these, as may be seen by the list of 

 subscribers in the Appendix, the response has been liberal and representative. 



The Committee acknowledge with pleasure the courtesy of Dr. D. D. 

 Cunningham in giving his sanction to the publication in this volume of the 

 papers which are the joint productions of himself and Dr. Lewis. Dr. 

 Cunningham's name, with that of Dr. Lewis, appears at the head of each 

 of these conjoint papers. 



The expense of reprinting has been far greater than was estimated at 



