Collectiye Investigation of New Drugs. 



METHOD OF INTRODUCTION: 



It is our method, when a new drug, which has in it the promise of therapeutic worth, 

 is introduced to our notice, to first have its physiological properties determined as 

 thoroughly as may be through experiments on animals, after which, if it shall appear to 

 have activity, it is subjected to chemical analysis with a view to the discovery of the 

 nature and precise seat of its active principle. This done, a pharmaceutical preparation is 

 made of it, which is distributed to the hospital service of the country and to physicians in 

 private practice, so that its therapeutic merits may be thus practically and definitely tested. 



In order that the results of the experiments, as above, may be of value as a basis of 

 further use of the drug by the profession, such reports thereof, as we are able to secure, 

 are issued in the form of our Working Bulletin." This bulletin is accompanied with a 

 list of such questions as previous use of the drug has suggested, answers to which are re- 

 spectfully solicited. Editions of this bulletin embodying the most recent additional reports 

 will from time to time be issued. When a sufficient quantity of such material has beea 

 collated, it will be properly classified and published for the benefit of science. 



PARKE, DAVIS & CO. 



