36. SKULL OF HORNED FOWL, VIEWED FROM ABOVE, A LITTLE OBLIQUELY. 37. SIXTH CERVICAL VERTEBRAE OF FOWLS, VIEWED LATERALLY. 38. EXTREMITY OF THE FURCULA OF FOWLS, VIEWED LATERALLY. 39. SKULLS OF DUCKS, VIEWED LATERALLY, REDUCED TO TWO-THIRDS OF THE NATURAL SIZE. 40. CERVICAL VERTEBRAE OF DUCKS, OF NATURAL SIZE. 41. PODS OF THE COMMON PEA. 42. PEACH AND ALMOND STONES, OF NATURAL SIZE, VIEWED EDGEWAYS. 43. PLUM STONES, OF NATURAL SIZE, VIEWED LATERALLY. TABLE 1: PRINCIPAL ADDITIONS AND CORRECTIONS IN THIS (SECOND) EDITION. First Edition, Volume I., Page 34. Second Edition Volume I., Page 35. Dr. Burt Wilder's observations on the brains of different breeds of the Dog. First Edition, Volume I., Page 38. Second Edition Volume I., Page 40. Degeneracy of Dogs imported into Guinea. First Edition, Volume I., Page 51. Second Edition Volume I., Page 54. Difference in the number of the lumbar vertebrae in the races or species of the Horse. First Edition, Volume I., Page 102. Second Edition Volume I., Page 106. Hairy appendages to the throats of Goats. First Edition, Volume I., Page 162. Second Edition Volume I., Page 170. Sexual differences in colour in the domestic Pigeon. First Edition, Volume I., Page 217. Second Edition Volume I., Page 228. Movements like those of the Tumbler-pigeon, caused by injury to the brain. First Edition, Volume I., Page 290. Second Edition Volume I., Page 306. Additional facts with respect to the Black-shouldered Peacock. First Edition, Volume I., Page 296. Second Edition Volume I., Page 312. Ancient selection of Gold-fish in China. First Edition, Volume I., Page 314. Second Edition Volume I., Page 332. Major Hallett's 'Pedigree Wheat.' First Edition, Volume I., Page 326. Second Edition Volume I., Page 345. The common radish descended from Raphanus raphanistrum. First Edition, Volume I., Page 374. Second Edition Volume I., Page 398. Several additional cases of bud-variation given. First Edition, Volume I., Page 396. Second Edition Volume I., Page 420. An abstract of all the cases recently published of graft-hybrids in the potato, together with a general summary on graft-hybridisation. First Edition, Volume I., Page 399. Second Edition Volume I., Page 429. An erroneous statement with respect to the pollen of the date-palm affecting the fruit of the Chamaerops omitted. First Edition, Volume I., Page 400. Second Edition Volume I., Page 430. New cases of the direct action of pollen on the mother-plant. First Edition, Volume I., Page 404. Second Edition Volume I., Page 435. Additional and remarkable instances of the action of the male parent on the future progeny of the female. First Edition, Volume II., Page 14. Second Edition Volume I., Page 459. An erroneous statement corrected, with respect to the regrowth of supernumerary digits after amputation. First Edition, Volume II., Page 23. Second Edition Volume I., Page 467. Additional facts with respect to the inherited effects of circumcision.