This is life; essays in modern biology, edited by Willis H. Johnson [and] William C. Steere. Johnson, Willis H. (Willis Hugh), 1902-1994, editor. Steere, William Campbell, 1907-1989, editor. Biology. Biology Essays. QH302 .J6 574 JOT New York, Holt, Rinehart and Winston 1962 1962 1962 Text 354 p. eng