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No 15. — Inefficiency of ferrous sulphate as an antiseptic and germicide. By 
Allan J. McLaughlin. 
No. 16. — The antiseptic and germicidal properties of glycerin. By M. J. 
Rosenau. 
No. 17. — Illustrated key to the trematode parasites of man. By Ch. Warden 
Stiles. 
No. 18. — An account of the tapeworms of the genus Hymenolepis parasitic in 
man, including reports of several new cases of the dwarf tapeworm ( H . nana) 
in the United States. By Bray ton H. Ransom. 
No. 19. — A method for inoculating animals with precise amounts. By M. J. 
Rosenau. 
No. 20. — A zoological investigation into the cause, transmission, and source 
of Rocky Mountain “ spotted fever.” By Ch. Wardell Stiles. 
No. 21. — The immunity unit for standardizing diphtheria antitoxin (based on 
Ehrlich’s normal serum). Official standard prepared under the act approved 
July 1, 1902. By M. J. Rosenau. 
No. 22. — Chloride of zinc as a deodorant antiseptic, and germicide. By T. B, 
McClintic. 
No. 23. — Changes in the Pharmacopoeia of the United States of America. 
Eighth Decennial Revision. By Reid Hunt and Murray Galt Motter. 
No. 24. — The International Code of Zoological Nomenclature as applied to 
medicine. By Ch. Warded Stiles. 
No. 25. — Illustrated key to the cestode parasites of man. By Ch. Warded 
Stiles. 
No. 26. — On the stability of the oxidases and their conduct toward various 
reagents. The conduct of phenolphthalein in the animal organism. A test for 
saccharin, and a simple method of distinguishing between cumarin and vanillin. 
The toxicity of ozone and other oxidizing agents to lapase. The influence of 
chemical constitution on the lipolytic hydrolysis of etheral salts. By J. H. 
Kastle. 
No. 27. — The limitations of formaldehyde gas as a disinfectant with special 
reference to car sanitation. By Thomas B. McClintic. 
No. 28. — A statistical study of the prevalence of intestinal worms in man. 
By Ch. Warded Stiles and Philip E. Garrison. 
No. 29. — A study of the cause of sudden death following the injection of horse 
serum. By M. J. Rosenau and John F. Anderson. 
No. 30. — I. Maternal transmission of immunity to diphtheria toxin. II. 
Maternal transmission of immunity to diphtheria toxin and hypersusceptibility 
to horse serum in the same animal. By John F. Anderson. 
No. 31. — Variations in the peroxidase activity of the blood in health and 
disease. By Joseph H. Kastle and Harold L. Arnoss. 
No. 32. — A stomach lesion in guinea pigs caused by diphtheria toxine and its 
bearing upon experimental gastric ulcer. By M. J. Rosenau and John F. 
Anderson. 
No. 33. — Studies in experimental alcoholism. By Reid Hunt. 
No. 34. — I. Agamofilaria georgiana n. sp., an apparently new roundworm 
parasite from the ankle of a negress. II. The zoological characters of the 
roundworm genus Filaria Mueller, 1787. III. Three new American cases of 
infection of man with horsehair worms (species Paragordius varius), with 
summary of all cases reported to date. By Ch. Wardell Stiles. 
No. 35. — Report on the origin and prevalence of typhoid fever in the District 
of Columbia, By M, J. Rosenau, L. L. Lumsden, and Joseph H. Kastle. (In- 
