Albert Leffingwell

Animals' Rights, Considered in Relation To Social Progress

Albert Leffingwell

$17.98 - $37.95

An Ethical Problem, Or, Sidelights Upon Scientific Experimentation on Man and Animals

Albert Leffingwell

$12.77 - $49.37

The Vivisection Problem: A Controversy Between Charles S. Myers And Albert Leffingwell

Albert Leffingwell

$22.65 - $26.95

Illegitimacy and the Influence of Seasons Upon Conduct ; two Studies in Demography

Albert Leffingwell

$18.22 - $39.95

Rambles Through Japan Without a Guide

Albert Leffingwell

$22.90 - $46.59

The Vivisection Controversy: Essays And Criticisms

Albert Leffingwell

$22.95 - $29.95

Vivisection

Albert Leffingwell

$12.19 - $30.95

Does Science Need Secrecy?: A Reply to Prof. Porter and Others of Harvard Medical School

Albert Leffingwell

$26.95

The Leffingwell Record, 1637-1897: A Genealogy of the Descendants of Lieut. Thomas Leffingwell, One of the Founders of Norwich, Conn (Classic Reprint)

Albert Leffingwell

$23.95

Is Science Advanced By Deceit? A Question And A Criticism (1900)

Albert Leffingwell

$16.43

American Meat and Its Influence Upon the Public Health

Albert Leffingwell

$23.00 - $32.95

An Ethical Problem; Or, Sidelights upon Scientific Experimentation on Man and Animals

Albert Leffingwell

$22.68

The Rise of the Vivisection Controversy: a Chapter of History

Albert Leffingwell

$16.43

The vivisection question

Albert Leffingwell

$33.95

An Ethical Problem

Albert Leffingwell

$24.95 - $36.95