cut with a knife the m úseles look as if they liad been bruised 

 by a severe blow. The affected muscles are darle in color and 

 filled with dark blood containing bubbles of gas. The only 

 diseases that may be mistaken for blaekleg are injuries and 

 anthrax (charbon). If a calfis injured and swelling follows 

 there is no accumulation of gas beneath the skin and no 

 craekling sound when rubbed. Anthrax is more frequent in 

 adult cattle and there is usually a discharge of bloody fluid 

 from the natural openings of the body, particularly from the 

 nose and anus, either before or after death. 



When blaekleg oceurs in a herd of calves several are 

 usually attacked at the same time. 



In all cases the cadavers of calves dying from blaekleg 

 should be burned or buried deeply, and all grass, litter or other 

 material that may be infected should be burned. Otherwise 

 the germs of blaekleg may be scattered by dogs or buzzards 

 over adjoining territory. 



MORTALITY. 



A large number of calves die annually in Cuba from 

 blaekleg. For a number of years the Junta Superior de Sani- 

 dad, under the direction the Secretary of Gobernación, has 

 made and sent blaekleg vaccine free to all residents of Cuba 

 who have asked for it. With each lot of vaccine was also sent 

 directions for using, and the follovving blank which they 

 were requested to fill out and return to Havana within ten 

 days. 



Province Ñame of farin Municipality.... District 



Number of cattle vaccinated... Ages Natives 



Imported.... Deaths oceurring before vaccinating.. Mor- 



tality within 48hours after vaccinating Deaths oceurring 



after 48 hours but within seven days after vaccination 



Mortality after the seven days Date of vaccination 



Ñame of owner and address 



Few persons, probably not more than ten per cent filled 

 out and returned the blanks. From the number of doses of 

 vaccine sent out and the replies received the following data 



