Scope and Contents Thomson discusses how intelligence is distributed between the various social or occupational levels of society. He explains the normal distribution of intelligence within the population, drawing parallels with the distribution of height. Thomson refers to inquiries carried out by him in Northumberland in 1922, and inquiries carried out in the Isle of Wight in 1924, which demonstrated that individual differences outweigh social differences, and supported the notion that heredity...

Scope and Contents Wallace thanks Ewart for sending a copy of his Penycuik Experiments. He considers that Ewart does not emphasise the importance of breeding in telegony tests from pairs of animals of the same colour as well as the same breed. He believes it a shame that he has given so long a list of suggested experiments, as the greater the variety of single experiments, the less their cumulative effect. He gives advice on the procedures he should adopt for the hybridisation of...

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Balfour writes that she encloses a letter from Barrington Balfour (letter not present). She also expresses an interest in Ewart's theories that the eldest child in a family possesses more of the family traits of the father than the younger ones. She goes on to give the example of her sister and the respective resemblances to other members of her family.

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Baron de Parana thanks Ewart for sending a copy of his book on telegony. He then lists the six zebra hybrids in his possession, detailing their physical characteristics, and in particular their height and the dappling on their coats. He discusses telegony and 'infection', which he does not believe in. He cites many human examples to disprove the theory of telegony.

Letter is undated. It is not known who made the translation.

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Caird outlines some personality traits and physical characteristics of his father and grandfather. He discusses other family resemblances, the origins of the family name and other genealogical information.

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Tegetmeier thanks him for his recent letter and explaining that he has mislaid the book that Ewart lent him. He thanks him for the letters from Brazil and says he would be privileged to publish extracts from Ewart's article. He praises the cases opposed to the doctrine of telegony, in relation to humans. He cites the example of a family in the Finchley district, and details their ancestral history.