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Start Over You searched for: Collections Medicine in the Americas, 1610-1920 Remove constraint Collections: Medicine in the Americas, 1610-1920 Dates by Range 1850-1899 Remove constraint Dates by Range: 1850-1899 Publication Year 1860 to 1869 Remove constraint Publication Year: <span class="from" data-blrl-begin="1860">1860</span> to <span class="to" data-blrl-end="1869">1869</span>

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3443. New system of ventilation, which has been thoroughly tested, under the patronage of many distinguished persons: being adapted to parlors, dining and sleeping rooms, kitchens and basements, cellars, vaults and water closets, tenement houses, school, lecture and court rooms, churches, legislative halls, poor houses, prisons and hospitals ... &c. &c. &c