 The milk teeth begin to grow about fifteen days after the colt is foaled ; at two years and a half the middle ones are replaced, at three and a half the two succeeding ones ; at four and a half the outermost, or the corners.  Elements of zoology - Trang 69bởi William Rhind - 1839Xem Toàn bộ - Giới thiệu về cuốn sách này
 | Georges Léopold C.F.D. baron de Cuvier - 1849 - 820 trang
...age il known by hi» incisors. The miiime teeth begin to appear about fifteen days after birth ; and at two years and a half the middle ones are replaced ; at three and a half the two next follow ; and at four and a half, the outermost or corner teeth. All these teeth, with originally-indented... | |
 | 1851 - 1000 trang
...is known by the incisors. The milk teeth begin to grow about fifteen days after the colt is foaled ; at two years and a half the middle ones are replaced, at three and a half the two succeeding ones ; at four and a half the outermost, or the corners. All these teeth, with an originally... | |
 | Johann Georg Heck - 1860 - 984 trang
...known by the incisors. The milk teeth begin to grow about fifteen da}^s after the colt is foaled ; at two years and a half the middle ones are replaced ; at three and a half the two succeeding ones; at four and a half the outermost, or the corners. All these teeth, with an originally... | |
 | Gordon Boles - 1883 - 128 trang
...about a fortnight after it is foaled ; at two and a half years old the middle ones are replaced, and at three and a half the two next ones, and at four and a half the outer or corner ones. All these teeth have originally an indented crown, which they gradually lose... | |
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