2 7 o INDEX 



PANSY, Hairs from flower of, 36 

 Palisade cells of leaf, 60, 68, 71 

 Parasites, Animal, 157-183 



Beneficial, 175, 177 



Catholic kinds of, 158 



requiring more than one host, 167-169 

 Peacock, Eggs of parasite of, 1 42 

 Peccary, Hairs of, 262 

 Penguins, Feathers of, 255 

 Pheasant, Eggs of parasite infesting, 142 

 Pig, Parasite of, 73 

 Pigeon, Parasite of, 175 

 Pike, Parasite of, 177 

 Pillwort, Structure of stem of, 48, 50 

 Pine, Leaf structure of, 56, 68, 69 

 Plants and Animalcules, difficulty in classification of, 4, 



Desert, 68 



Evolution of form in, 29, 30, 56, 57 



First indications of stem in, 28, 29 



Free-swimming, 4, 6, 14, 15, 27 



Growth of, 45, 53 



Hairs of, 36, 37 



in rain-water cisterns and similar situations. 4 



in sea-water, i, 2 



on damp walls, &c., 2 



on old fence, 32, 33 



Stems of, 40-44, 53, 55 



Storehouses of, 82 



Thread-like, 25, 26 



Unicellular, 4, 8, 9, 33 



Varieties in forms of, 1,2 



Water-, 48. 50, 69 

 Polecat, Parasite of, 183 

 Pollen, 86, 89-91 



grains, Compound, 97 



Showers of, in towns, 106 



External markings of, 93, 97 



Function of, 98, 99 



Quantity of, produced, qi, 104, 105 



