42 
account a microscopist might furnish from the examination 
of milk containing such an importation ! In the cold wea- 
ther, such as we have at present, animal organisms are not 
so abundant, and this may account for their absence from a 
sample of milk obtained in this town, in which I found 
algse, but not belonging to the pure milk. One curious 
circumstance was noticed in this milk, no Mucor Mucedo 
appeared in or on it, although exposed in the closet for the 
same length of time as Mr. Kipping’s milk, which showed 
signs of this growth on the sixth day, and on the twelfth 
day the town milk had none visible. I may mention that 
pure milk in a bottle securely corked remained fresh twelve 
days; possibly the low temperature favoured its preser- 
vation. 
