This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...2,600 Brachiopoda (1 species).......... 2,600 Tunicata (3 species)........ over 2,300 Polyzoa (4 species) 2,200 (1 at 3,125) Crustacea (7 species)........ " 2,300 Paul Regnard investigated the effect of water-pressure on various living organisms, and on the frog's muscle and heart. He found 400 to 500 atmospheres (2 ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...2,600 Brachiopoda (1 species).......... 2,600 Tunicata (3 species)........ over 2,300 Polyzoa (4 species) 2,200 (1 at 3,125) Crustacea (7 species)........ " 2,300 Paul Regnard investigated the effect of water-pressure on various living organisms, and on the frog's muscle and heart. He found 400 to 500 atmospheres (2,200 to 2,750 F.) was a critical pressure which caused frog's muscle to swell and rupture, and I-I Fro. 42.--Automatic Dredge For Collecting Sample Of Ooze At Bottom Of Ocean (regnard). The weights by falling off close the vessel. live organisms to become " endormis." He studied the contraction of frog's muscle and the behaviour of small organisms by means of the apparatus shown in Fig. 43. The objects were projected on the screen by means of an arc light, and the lenses fitted in the chamber. The pressure was raised by an hydraulic press. The writer has reinvestigated the effect of high-water pressure with the co-operation of Sir Charles Parsons, who has constructed a most powerful press, by means of which water can be compressed even to 80 per cent. of its bulk.f "La Vie dans les Eaux," 1891. t Proc.'Roy. Soc, 85a, p. 332, 1911. Fig. 43.--Regnard's Apparatus For Studying Contraction Of Muscle Under 300 To 500 Atmospheres Of Water-pressure. Frogs with their brains destroyed preserve undiminished their reflexjaction and beat of heart after exposure for two hours to 300 atmospheres. Exposure to 400 atmospheres for one hour causes complete paralysis; the muscle structure is disorganized, and the myelin changed in the nerve fibres, so that it can be squeezed out in droplets. Frog muscles exposed without the covering of skin are disorganized in shorter time. Leeches and the larvae of gnats are rendered motionless by exposure...
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Add this copy of Caisson Sickness, and the Physiology of Work in to cart. $44.95, new condition, Sold by Revaluation Books rated 4.0 out of 5 stars, ships from Exeter, DEVON, UNITED KINGDOM, published 2009 by BiblioBazaar.
Add this copy of Caisson Sickness, and the Physiology of Work in to cart. $47.02, new condition, Sold by Revaluation Books rated 4.0 out of 5 stars, ships from Exeter, DEVON, UNITED KINGDOM, published 2009 by BiblioBazaar.
