This has been the indispensable companion of chicken breeders since its introduction in 1949. Chapters include the genetics of plumage, egg production, body size, disease resistance, and much more. (Animals/Pets)

Schooling has become less about learning and more about the scramble for good grades, high test scores, and spotless transcripts. No one is happy about this, least of all students. But what can be done? Off the Mark explains how we got into this predicament, why our reforms haven’t worked, and how we can reorient our system to advance learning.

Why and wherefore; Innate disease; On coping with the environment; Resistant little animals; Resistant big animals; Resistant birds; Aberrant metabolism; Ways of resisting; Ways to use resistance.