CHAPTER XX. PECTORAL AND PELVIC GIRDLES AND THE SKELETON OF THE LIMBS.

Pp. 599-622.

The Pectoral girdle, pp. 599-606. Pisces, pp. 599-601. _Amphibia and Amniota_, pp. 601, 602. Lacertilia, p. 603. Chelonia, p. 603. Aves, pp. 603, 604. Mammalia, p. 604. Amphibia, p. 605. Bibliography of Pectoral girdle, pp. 605, 606.

The Pelvic girdle, pp. 606-608. Pisces, pp. 606, 607. _Amphibia and Amniota_, pp. 606, 607. Amphibia, p. 607. Lacertilia, p. 607. Mammalia, p. 608. Bibliography of Pelvic girdle, p. 608. _Comparison of pectoral and pelvic girdles_, pp. 608, 609.

Limbs, pp. 609-622. The piscine fin, pp. 609-618. The cheiropterygium, pp. 618-622. Bibliography of limbs, p. 622.