Essays on the female economy / by John Power.

  • Power, John.
Date:
1821
Catalogue details

Licence: Public Domain Mark

Credit: Essays on the female economy / by John Power. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    APPENDIX TO THE ESSAY ON ABORTION. On the mode of procuring and administering Oxygen Gas. As the present Essay may get into the hands of those who may not be familiar with the manner of pro- curing and administering fictitious gases, I shall make no apology for subjoining to it a statement of an ad- vantageous mode of effecting these points at least with respect to oxygen gas. Oxygen gas is obtained readily, largely, and in a very pure state from the black oxyde of manganese, one ounce of which will yield about ninety cubic inches of gas ; this is far the best way of procuring it for medical purposes. With this intention the oxyde is to be exposed in an iron retort to the red heat of a common culinary fire. (Fig. 11.) Fig. 1. represents an iron retort adapted for this purpose, in which the manganese, in coarse powder, is to be enclosed. To this retort must be connected a con- ducting tube (Fig. 10.) about four feet long, con- sisting of different parts or joints (Fig. 2, 3, 4, 5.) The joint (Fig. 2.) which attaches immediately to H