Caird, James Hay, fl1899

Caird states how interested he had been to read Ewart's article in The Scotsman about experimental contributions to the theory of heredity. He provides example of cross-breeding from his own horses, cows and rabbits.

Caird states how interested he was in Ewart's letter which appeared in The Scotsman. He also discusses physical development and the transference of lines of thought between generations. He gives examples of his own family, and of other Scottish families.

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.