Index and Glossary. 



MER 



Merrythought, 56 

 Metamorphosis of tadpoles, 35 



shanges in form taking place 

 during the processes of growth. 



Migration of birds, 73 

 Milk, 74 



teeth, 77 

 Mink, 104 

 Minnow, 28 

 Missel-thrush, 66 

 Moa, 62 



Mocking-birds, 67 

 Molar teeth, 77 

 Mole, 114 



Moloch, spiny lizard, 43 



Mongoose, 104 



Monitor, 43 



Monotremata, an order of mammals 

 having a cloaca, 79 



Mormyrus, electric organ of, 29 



Mother Gary's chickens, 72 



Moulting, the process of the period- 

 ical shedding of feathers, 54 



Mound birds, 70 



Mouse, 108 



Mouth of whales, 100 



vertebrates, 3 



Mud eels. 38 



fishes, 15, 33 

 Mullets, 31 

 Muscles of birds, 58 

 Musk, 96 



deer, 96 



glands of crocodiles, 51 

 Mustela foina, or marten, 104 

 Myrmecobius, the banded ant-eater 



of Australia, 84 



TVJARWHAL, 101 



1 Nature of sense organs, 6 



Neck 9, 75 



Neural arch. 3 



Newts, 39 



New Zealand parrots, 64 



Nightingale, 67 



Nitrogenised waste, 10 



Nostrils of lamprey, 23 



Notochord, the gristly rod which 

 exists as the first form of backbone 

 in the earliest stage of all verte- 

 brates, 2, 17, 28 



Numida, head of, 70 



Nuthatch, 68 



PEN 



QCCIPITAL bone, the bone 



v - / which forms die back of the 

 skull. 



Ocelot, 104 



(Esophagus, the gullet or food- 

 passage from the mouth to the 

 stomach, 3, 59 



Old world monkeys, 119 



Operculum, the gill cover in fishes, 

 19, 28 



Ophidia, snakes, 44 



Opisthoccelous, vertebrate bodies 

 which are concave behind and 

 convex in front. 



Opossums, 81 



Optic lobes, 20 



Orang-utan, 121 



Omithorhynchus, the platypus or 

 duck-mole of Australia, 79 



Orycteropus, Cape ant-eater, 86 



Osprey, 72 



Ostrich, 58, 60, 64, 66 



Otter, 104 



Ounce, 103 



Oven-building birds, 68 



Oviparous, reproducing by the ay- 

 ing of eggs, 



Oyovmparous, retaining eggs with- 

 in the body until they are hatched 



Owls, 68 Ox, 97 



Oyster-catchers, 71 



PANTHER, 103 

 A Pangolin, 86 



Papilla, a wart-like projection of the 

 dermis. 



feather, 54 

 Paradise, birds of, 68 

 Parasitic fishes, 30 

 Parasphenoid bone, the long bone at 



the base of the skull in fishes, 36 

 Parrots, 63 

 Parrot fishes, 32 

 Partridges, 70 

 Patella, the small bone or 'cap' of 



the knee-joint. 

 Paunch, 96 

 Peacocks, 70 

 Pecten, a structure in the eye of 



bird, 61 

 Pectoral fins, 19-26 



muscles of bird, 58 

 Peewit, 71 



Pelias, the viper, 47 

 Pelicans 73 

 Pelvis, 56, 8 1 

 Penguins, 66, 73 



K 2 



