Xiv ILLUSTRATIONS. 



No. Page 



26. New-laid Egg, with part of the Shell removed . .110 



27. Egg of Black-cap 123 



28. Egg of the Tom-tit 125 



29. Egg of the Sky-lark 126 



30. Egg of the Blackbird 127 



31. Egg of the Magpie 130 



32. Egyptian Egg-oven 135 



33. Ground-plan of an Egyptian Egg-oven . . . 136 



34. Transverse section and elevation of an Egyptian Egg- 



oven 137 



35. Transverse section and perspective elevation of an 



Egyptian Egg-oven . . . . . .133 



36. Egg-frame 142 



37. Hatching Eggs in Dung 143 



38. Hatching-room over the bake-house ovens of the Priory 



of L'Enfant Jesus at Paris 144 



39. An Egg as it appears twelve hours after incubation, 



with a magnified view of the Embryo Chick . . 147 



40. An Egg as it appears sixteen hours after incubation, 



with a magnified view of the Embryo Chick . . 148 



41. An Egg as it appears thirty-six hours after incubation, 



with a magnified view of the Embryo Chick . . 149 



42. An Egg opened thirty-six hours after incubation, with a 



magnified view of the Embryo Chick, in which is 

 shown the, first appearance of the principal blood- 

 vessels . . . . . .150 



43. An Egg opened .four days after incubation, with a 



magnified view of the Chick .... 151 



44. An Egg as it appears five days after incubation, with a 



magnified view of the Chick . . . .152 



45. An Egg as it appears six days after incubation, with a 



magnified view of the Chick .... 153 



