ISSO.] J-^'-' fHartshorne. 



has so continued, with repeated revisals, down to the 

 present time. Not long after completingr this import- 

 ant work, Professor Wood began, with Professor 

 FrankHn Bache, aided for a time by Daniel B. 

 Smith, then President of the Philadelphia College 

 of Pharmacy, a very elaborate commentary upon the 

 Pharmacopoeia, under the name of the United States 

 Dispensatory. This, which made a volume of more 

 than a thousand large and closely printed pages, was 

 begun and finished by its authors In less than two 

 years. It has, since that time, passed through four- 

 teen large editions; the aggregate number of copies 

 sold, during Dr. Wood's life-time, amounting to 120,- 

 000 copies ; as it has long been regarded as every- 

 where indispensable to both the medical and the phar- 

 maceutical professions. The intimate association of 

 Doctors Wood and B-ache, in the preparation of this 

 most useful work of reference, was only a part of the 

 fabric of their life-long fraternal friendship. This close 

 intimacy was the more remarkable on account of their 

 being opposed in Interest as professors In the two 

 great rival medical schools; that of the Medical De- 

 partment of the University of Pennsylvania, and the 

 Jefferson Medical College of Philadelphia. 



In the professorship of Materia Medica and Thera- 

 peutics in the University of Pennsylvania, Dr. Wood 

 reached the culmination of his reputation as a public 

 Teacher. He was one of the leaders in that great 

 reform in Instruction upon scientific subjects, which 



