28 BULLETIN 1, IT. S. DEPARTMENT OF AGKlCULTUKE. 
38. Cleaning and sterilizing of bottles. — The dairy building shall be provided 
with approved apparatus for the cleansing and sterilizing of all bottles and 
utensils used in milk production. All bottles and utensils shall be thoroughly 
cleaned by hot water and sal soda, or equally pure agent, rinsed until the 
cleaning water is thoroughly removed, then exposed to live steam or boiling 
water at least 20 minutes, and then kept inverted until used, in a place free 
from dust and other contaminating materials. 
39. Utensils. — All utensils shall be so constructed as to be easily cleaned. 
The milk pail should preferably have an elliptical opening 5 by 7 inches in 
diameter. The cover of this pail should be so convex as to make the entire 
interior of the pail visible and accessible for cleaning. The pail shall be made 
of heavy seamless tin, and with seams which are flushed and made smooth by 
solder. Wooden pails, galvanized-iron pails, or pails made of rough, porous 
materials, are forbidden. All utensils used in milking shall be kept in good 
repair. 
40. Water supply. — The entire water supply shall be absolutely free from 
contamination, and shall be sufficient for all dairy purposes. It shall be pro- 
tected against flood or surface drainage, and shall be conveniently situated in 
relation to the milk house. 
41. Privies, etc., in relation to water supply. — Privies, pigpens, manure piles, 
and all other possible sources of contamination shall be so situated on the farm 
as to render impossible the contamination of the water supply, and shall be 
so protected by use of screens and other measures as to prevent their becom- 
ing breeding grounds for flies. 
42. Toilet rooms. — Toilet facilities for the milkers shall be provided and 
located outside of the stable or milk house. These toilets shall be properly 
screened, shall be kept clean, and shall be accessible to wash basins, water, 
nail brush, soap and towels, and the milkers shall be required to wash and dry 
their hands immediately after leaving the toilet room. 
TRANSPORTATION. 
43. In transit the milk packages shall be kept free from dust and dirt. The 
wagon, trays, and crates shall be kept scrupulously clean. No bottles shall be 
collected from houses in which communicable diseases prevail, unless a 
separate wagon is used and under conditions prescribed by the department of 
health and the medical milk commission. 
44. All certified milk shall reach the consumer within 30 hours after milking. 
VETERINARY SUPERVISION OF THE HERD. 
45. Tuberculin test. — The herd shall be free from tuberculosis, as shown by 
the proper application of the tuberculin test. The test shall be applied in 
accordance with the rules and regulations of the United States Government, 
and all reactors shall be removed immediately from the farm. 1 
46. No new animals shall be admitted to the herd without first having passed 
a satisfactory tuberculin test, made in accordance with the rules and regula- 
tions mentioned ; the tuberculin to be obtained and applied only by the official 
veterinarian of the commission. 
47. Immediately following the application of the tuberculin test to a herd 
for the purpose of eliminating tuberculous cattle, the cow stable and exercising 
yards shall be disinfected by the veterinary inspector in accordance with the 
rules and regulations of the United States Government. 
1 See Circular of Instructions issued by the Bureau of Animal Industry for making 
tuberculin tests and for disinfection of premises. 
