Studies in the genetics of Drosophila : III. The Drosophilidae of the southwest / by Patterson, John T.

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Isospora Bigeminum var. Hominis / by Raifman, José

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Cours d'Anatomie comparée des vertébrés / by Baer, Jean G.

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Comparative embryology of the vertebrates / by Nelsen, Olin E.

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Comparative vertebrate anatomy / by Hyman, Libbie Henrietta

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Poissons, les reptiles et les oiseaux / by Figuier, Louis

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Life of the spider / by Crompton, John

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Functional anatomy of the mammal / by Leach, W. James

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Ant world / by Wragge Morley, Derek

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Dinámica de la población animal / by Sévertzov, S.A

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Advances in reproductive physiology / by McLaren, Anne

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Care and breeding of laboratory animal / by Farris, Edmond J.

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Statistical methods in biology / by Bailey, Norman T. J.

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Células y sociedades / by Bonner, John Tyler

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L'énergie vitale / by Rouviere, H.

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Species problems /

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Introduction to the embriology of angiosperms / by Maheshwari, P.

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Cryptogamic botany / by Smith, Gilbert M.

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Cryptogamic botany / by Smith, Gilbert M.

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Respiración de las plantas / by Stiles, Walter

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