Reports of Observations and Experiments in the Practical Work of the Division, Made Under the Direction of the Entomologist (Classic Reprint) - Tapa dura

Sinopsis

Excerpt from Reports of Observations and Experiments in the Practical Work of the Division, Made Under the Direction of the Entomologist

The description of the principles and mechanism of the Serrell auto matic silk-reel has been prepared by Mr. Philip Walker, assistant in charge of the reeling experiments and machinery at the Department. It will be found useful in explaining the advantages which that deli cate and remarkable invention has over the ordinary reel as a labor saver, though no amount of description will impress the fact on the mind so forcibly as a few moments' observation of the reel at work.

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