Author

John Ritchie

12 books found

Cover of Public and Personal Health

Public and Personal Health

John W. Ritchie · First published 2018

Cover of Human physiology

Human physiology

John W. Ritchie · First published 1908 · Latest edition 2007

Placeholder cover for Teacher's Manual

Teacher's Manual

John W. Ritchie · First published 1948

Cover of Biology and human affairs

Biology and human affairs

John W. Ritchie · First published 1941

Placeholder cover for Human physiology; an elementary text-book with special emphasis on hygiene and sanitation

Human physiology; an elementary text-book with special emphasis on hygiene and sanitation

John W. Ritchie · First published 1920

Cover of Primer of Hygiene

Primer of Hygiene

John W. Ritchie, Joseph Stuart Caldwell · First published 1910 · Latest edition 1920

Cover of Keeping the laws

Keeping the laws

John W. Ritchie · First published 1917

Placeholder cover for Primer of sanitation and physiology

Primer of sanitation and physiology

John W. Ritchie · First published 1914

Cover of Cartilla de higiene personal

Cartilla de higiene personal

John W. Ritchie · First published 1913

Cover of Primer of physiology

Primer of physiology

John W. Ritchie · First published 1913

Cover of Primer of sanitation

Primer of sanitation

John W. Ritchie · First published 1909 · Latest edition 1913

Cover of Sanitation and physiology

Sanitation and physiology

John W. Ritchie · First published 1910