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by Science Source
$38.00
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Our Bella / Canvas t-shirts are made from a 50% cotton / 50% polyester blend and are available in five different sizes. They're stylish, soft, and incredibly comfortable. Machine wash with cold water, and tumble dry on low heat.
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Within one month of the arrival of the news of anesthesia arriving in London, John Snow had investigated the properties of ether, established the... more
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Within one month of the arrival of the news of anesthesia arriving in London, John Snow had investigated the properties of ether, established the concentrations required and designed, tested and published the results of using a vaporizing device. This 1847 engraving shows Snow's apparatus for the application of ether. A. Box of japanned tin or plated copper, of the size and form of a thick octavo volume, serving as a water-bath when the apparatus is in use, and at other times containing the elastic tube and face-pieces. Attached to this by clasps, and moveable at pleasure, is B. The spiral ether chamber, of thin tinned brass, or copper plated with silver. C. Opening in ditto for putting in and pouring out ether, and for screwing on, D. Brass tube, by which the air enters which the patient inhales. E. Another opening in ether chamber for screwing on F. Elastic tube about three feet in length. G. Face-piece. H. Inspiratory valve. I. The same face-piece compressed, to fit it to a smaller...
$38.00
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