[11] N. Dict. d'Hist. Nat. xvi. 307.
[12] Thus in the Molluscæ there must be a great difference in this respect, since in some of these the brain or cerebral ganglion has been cut off with the head, and another reproduced. Ibid. xvi. 306. Comp. v. 391.
[14] Comp. Plate [XXX]. Fig. 1. and 6. and Carus. Introd. to Comp. Anat. i. 64.
[15] Lyonet Anatom. 100.
[16] Ibid. 101.
[17] Lyonet Anatom. 100. In man and the vertebrate animals, the medullary pulp is every where homogeneous; under the microscope it appears to consist of a number of minute conglomerated globules. M. Vauquelin has analysed it, and found it to contain, of water 80 parts; of albumen in a state of demicoagulation 7·0; of phosphorus 1·50; of osmazone 1·12; of a white and transparent oily matter 4·53; of a similar red do. 0·75; of a little sulphur and some salts 5·15. N. Dict. d'Hist. Nat. xxii. 531—.
[18] Anat. 99.
[19] Malpigh. de Bombyc. 20. Swamm. Bibl. Nat. i. 224. a.
[20] Anat. Comp. ii. 348.