Lantern slides relating to the cleanliness of milk

Scope and Content
Six slides from a box labelled 'Milk' of uncaptioned cell cultures from milk samples. Seven single slides: organisms in milk deposit, 1920.; sediment in milk direct from farm [four tubes with result after centrifuge]; table showing keeping qualities of milk in churns treated in different ways, 1922; table of results from 152 samples of milk taken from railways stations, 1921-1922; table of effect of temperature on bacterial growth showing value of holding milk at 50ºF; table of ordinary increase of bacteria in country milk sampled at railway station; and table of milk from cows under different conditions of cleanliness.
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Scope and Content