TREASURY DEPARTMENT. 
Public Health and Marine-Hospital Service of the United States. 
Walter Wyman, Surgeon-General. 
HYGIENIC LABORATORY.— BULLETIN No. 27. 
M. J. ROSENAU, Director. 
April 9, 1906. 
THE LIMITATIONS OF FORMALDEHYDE GAS 
AS A DISINFECTANT, 
WITH SPECIAL REFERENCE TO CAR SANITATION. 
BY 
TtTOlVLAS B XTcCLIXTTC. 
'/ 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
I906. 
