128 REPORT OF NATIONAL MUSEUM, 1920. 



9. Bacteriological Laboratory, fitted with apparatus for pre- 

 paring culture media, hot air and steam sterilizers for glassware, 

 centrifuges operated by hand, water power and electricity, elec- 

 trically controlled incubator, a water bath, and a compound 

 microseope with all regular accessories. 



10. Serological Laboratory, containing AVasserman bath, ani- 

 mal cage, innoculating equipment, etc. 



11. Pathological Laboratory with paraffine bath, embedding 

 apparatus, microtome, microscope, staining equipment and set 

 of instruments for post-mortem work. 



12. Chemical Laboratory, containing in addition to the usual 

 equipment, special "apparatus for the examination and analysis 

 of water, blood, urine, etc.. and a demonstration of the manner 

 of preparing and standardizing Dakin's solution for use in the 

 ward. 



This comprehensive exhibit of the means placed in the hands of the 

 medical officers of the U. S. Army, with which to fight the medical 

 battles of the War of 1917-1918, was opened to the public on March 

 1, 1920, and has from the beginning attracted the attention of visi- 

 tors. Former service men and their relatives and friends are all 

 intensely interested in seeing the tilings that meant so much in the 

 restoration of the sick or wounded soldier. 



A special exhibit was arranged in the division of medicine for 

 the benefit of the delegates in attendance on the 68th Annual Con- 

 vention of the American Pharmaceutical Association, held May 5th 

 to 10th. and the U. S. Pharmacopoeial Convention on May 11 and 12, 

 192D. The exhibit filled three cases on the East Gallery of the Arts 

 and Industries Building, and comprised: 



1. A collection of the Pharmacopoeias of practically every foreign country 

 which authorizes such a standard : 



2. The historical development of the United Stales Pharmacopoeia, heginning 

 \viih the Edinburgh Pharmacopoeia of 1766 and the Pharmacopoeia of the Mas- 

 sachusetts Medical Society of 1808, the precursors of our U. S. Standard, which 

 was shown in practically every edition: 



3. The National Formulary, now official in the enforcement of the Pure Food 

 and Drug Laws, and examples of the Homeopathic and Veterinary Pharmaco- 

 poeias ; 



4. A collection of Commentaries on the U. S. Pharmacopoeia, comprising many 

 editions of the U. S. Dispensatory, the National Dispensatory, and the Ameri- 

 can Dispensatory, and digests and comments from the last Committee on Re- 

 vision of the Pharmacopoeia ; 



5. Photographs of }>ersoiis prominent in the American Pharmaceutical Asso- 

 ciation. 



This exhibit as well as the study collections and sectional library 

 was visited by many of the delegates in attendance upon the conven- 

 tions. As the curator and assistant curator in charge of this division 



