A course of practical instruction in elementary biology / by T. H. Huxley, assisted by H. N. Martin.

London : Macmillan, 1875.

279 pages ; 19 cm.

Spine title: Practical biology

Cover title: Biology

According to the revised edition of 1888, this edition was reprinted in 1876, March and July 1877, February and December 1879, 1881, 1882, 1883, 1885, March, September, December 1886, 1887. The t.p.'s of those printings are worded as if they are new editions. The title changes from the 1876 printing to: A course of elementary instruction in practical biology.

Copy 1 Note: 1877 printing

Copy 3 Note: 1882 printing

Copy 4 Note: 1883 printing

Copy 6 Note: 1876 printing