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Due to essential maintenance, we won’t be able to retrieve items from our closed stores over the weekend. Please submit requests for Monday 20 April by 10:00 on Friday 17 April. The library will remain open as usual. Thank you for your understanding.

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Notes on the proportion of the sexes in dogs / by Walter Heape.

A mathematical treatment of some biological problems / Shinkishi Hatai.

The proportion of the sexes produced by whites and coloured peoples in Cuba : [abstract] / by Walter Heape.

Measuring sex, age and death in the Roman Empire : explorations in ancient demography / by Walter Scheidel.

Om Kjon og Aldersforhold som disponerende Momenter til Sindssygdom / af L. Dahl.

The proportion of the sexes produced by whites and coloured peoples in Cuba / by Walter Heape.

Sur la parthénogénèse arrhénotoque de la fourmi ouvrière / Janet, Charles.

Theories of the production of males and females / by Silas Hubbard.

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