APPENDIX 281 



stamp or mark shall bear the phrase "U. S. Released." 

 Each container of simultaneous virus shall be appropri- 

 ately sealed with a suitable material and the aforesaid 

 stamp or mark securely affixed to the sealing material 

 under the supervision of a bureau employee. Should 

 any difficulty result from the action of moisture upon 

 said stamp or mark, causing it to become detached or 

 illegible, that portion of the container which has been 

 sealed and stamped shall be subjected at once to dipping 

 in hot paraffin or other waterproof material. 



Paragraph 2. The trade label on each immediate or 

 true container of simultaneous virus shall bear the date 

 of manufacture, which date shall be the day on which 

 the virus is collected. 



Paragraph 3. The return date placed upon the label 

 of each immediate or true container of simultaneous 

 virus shall be a date within 60 days after the date of 

 manufacture. 



Paragraph 4. Trade labels affixed to or used in con- 

 nection with the immediate or true containers of hog- 

 cholera virus shall plainly show the amount of the con- 

 tents of said containers. 



Paragraph 5. Trade labels affixed to or used in con- 

 nection with each immediate or true container of simul- 

 taneous virus shall bear a dosage table in which the doses 

 recommended are not less than those appearing in the 

 following table: 



Weight. Minimum dose. 



Pigs weighing 100 pounds or less 1 c. c. 



Hogs weighing more than 100 pounds. . . 2 c. c. 



Paragraph 6. No hog-cholera virus shall be released 

 for marketing unless and until all information required 

 by these regulations has been affixed to the containers 

 thereof under the supervision of a bureau employee. 



