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. 1917 Excerpt: ...1003, pp. 731-736. Gadow, H., Amphibia and Reptiles, Cambridge Natural History, Vol. VIII, 1909. CHAPTER XXII Volant Adaptation Next to water as a moulding environment comes the air, for the creature which inhabits either is surrounded on all sides by a homogeneous medium so that it becomes uniformly and beautifully ...
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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. 1917 Excerpt: ...1003, pp. 731-736. Gadow, H., Amphibia and Reptiles, Cambridge Natural History, Vol. VIII, 1909. CHAPTER XXII Volant Adaptation Next to water as a moulding environment comes the air, for the creature which inhabits either is surrounded on all sides by a homogeneous medium so that it becomes uniformly and beautifully modified to offer the least possible resistance to the attainment of speed. Waterjnhabiting forms, however, whether primarily or secimclarjly_dapted, may become so thoroughly at home that in the latter group no evidence, of their former habitat may be outwardly visible. Aerial crealureSjon the contrary, are heVgr6xclusiyejy.ucji_ajidjnust return to flic trees or earth or sea when they wish to rest. Hence their adaptation, is always a double one and as a consequence cannot reach the extreme of specialization / of water-lDorneTypes. Classification of Flight Passive or Gliding Flight.--Flight is_QjLtwo sorts.:, fksL passive or gliding flight, wherein, with the exception of the.fishes, the cfeatuie meiely takes an initial leap from a high point and, held up by certain sustaining organs and impelled by gravity, glides to a lower level, sometimes covering a horizontal distance of many yards. Aside from the initial impetus there is no locomotive force other than gravity, so that the flight is comparable to a gliding aeroplane bereft of its engine power. True Flight.--True flight, on the contrary, implies powerj.so thajTthere is sustained movement through the air, whether the flight be brief like thatadorncstic hen or supported on the tireless pinions of an albatross. True flight has evolved three times aJ71ong vertebratesin the-teptilian pterodactyls, the birds, and the bats. Whether flying fishes should be included is a much disputecTquestion. True fly.
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Add this copy of Organic Evolution to cart. $25.94, fair condition, Sold by Anybook rated 5.0 out of 5 stars, ships from Lincoln, UNITED KINGDOM, published 1921 by Macmillan.
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Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. Clean from markings. In fair condition, suitable as a study copy. No dust jacket. Re-bound by library. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 1050grams, ISBN:
Add this copy of Organic Evolution to cart. $27.00, good condition, Sold by Common Crow Books rated 5.0 out of 5 stars, ships from Pittsburgh, PA, UNITED STATES, published 1917 by Macmillan.
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Good. 8vo, publisher's green cloth gilt, good plus with light general wear and dustiness to covers, foxing to text block edges and endpapers, front inner hinge with neat repair. Ownership signature of Oscar Howe of Camden Maine, Xmas 1926. According to an online site on Maine, "Oscar and his brother Walter, both bachelors, lived on the farm their entire lives and were well known for their frugal lifestyle. One year, they spent only $50, growing all their own food and working the land. Walter used to tell how Oscar would "buy overalls three sizes too large so he could cut the bottoms off the pants to make a hat."
Add this copy of Organic Evolution to cart. $30.01, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Organic Evolution to cart. $38.50, good condition, Sold by Archives Books, inc. rated 5.0 out of 5 stars, ships from Edmond, OK, UNITED STATES, published 1947 by Macmillan.
Add this copy of Organic Evolution to cart. $40.32, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Organic Evolution to cart. $43.47, poor condition, Sold by Anybook rated 5.0 out of 5 stars, ships from Lincoln, UNITED KINGDOM, published 1935 by Macmillan.
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Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 1100grams, ISBN:
Add this copy of Organic Evolution to cart. $46.65, fair condition, Sold by Anybook rated 5.0 out of 5 stars, ships from Lincoln, UNITED KINGDOM, published 1927 by Macmillan.
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Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 1100grams, ISBN:
Milton Under Wychwood,
OXFORDSHIRE,
UNITED KINGDOM
$52.12
Add this copy of Organic Evolution to cart. $52.12, good condition, Sold by Greensleeves Books rated 5.0 out of 5 stars, ships from Milton Under Wychwood, OXFORDSHIRE, UNITED KINGDOM, published 1924 by Macmillan.
