Eugenics: The Science of Human Improvement by Better Breeding, by Charles B. Davenport (9)

1711. [left side] B [pedigree chart] Sqaures, males; circles, females; shaded or lettered, liable to given disease. aden., adenoids; bo., boils; Bri. dis., Bright's disease; catr., catarhh; diab., diabetes; drop., dropsy; mast'd, mastoiditis; pa. or pneu., pneumonia; rheu., rheumatism; trach., trachitis; tubr., tuberculosis. (13), age. [right side] C [pedigree chart] Squares, males; circles, females; shaded, affected. Figures in circles indicate number of normals. Astig, astigmatism; bron., bronchitis; H. D., heart disease; nerv., nervous. [end]