s blood disease. sary jack-screws, chain, clamps, etc., for firmly secur- In 1876 the city Health Department started a vaccine ing the railroad cars; and the loading and unloading farm, and out of this has grown the present vaccine docks are equipped with a novel device cor- laboratory. This… … VACCINE VIRUS—ITS PREPARATION AND hot water and shaved—the first step in the ITS USE. GRINDING AND EMULSIFYING THE PULP. preparation of vaccine. From the stable Variola or smallpox is said to have found the calf is led to the operating-room and its way into Europe in the seventh century, and to…
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