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. 1907 Excerpt: ...and Mrs. Hagedoorn criticise severely a series of experiments with hooded rats, which I have for some years been conducting with a view to testing the effectiveness of selection. That investigation of this question is worth while will, T think, be questioned by no one, in view of its vital connection with theories of ...

Early Papers 2016, Palala Press

ISBN-13: 9781354691199

Hardcover

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Early Papers 2012, Rarebooksclub.com, Miami FL

ISBN-13: 9781159358808

Trade paperback

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