N 
40 
Pauropoda 
. . 3431 
Radiolaria . . 
, , 
. , 
0431 
Pedagogy . . 
. . 0050 
Eegeneration 
. . 
0215 
Pedipalpi . . 
.. 303L 
Reproduction 
. . 
, . 
0215 
Pelagic Animals . . 
. . 0219 
Reproductive Organs 
. . 
0207 
PelecinidiB 
. . 4631 
Reptilia . . 
5600 
Pelecjpoda 
. . 2213 
Resemblances 
. . 
. , 
0219 
Periodicals 
. . 0020 
Respiration 
, . 
. , 
0211 
Peripatus . . 
Respiratory Organs 
. . 
0207 
Perissodactyla 
. . 6031 
Rheto 
, . 
. . 
5831 
Perlidte 
. . 3831 
Rhipidoglossa 
. . 
. . 
2231 
Phalangida 
. . 3031 
Rhiptoglossa 
. . 
5631 
Phasmida;. . 
. . 3831 
Rhizopoda 
, , 
0431 
Phenology 
.. 0219 
Rhop:ilocera 
4431 
Philosophy 
. . 0000 
Rhynchosauria . . 
, . 
. . 
5631 
Phoenicopteri 
. . 5831 
Rhynchota 
4000 
Phoronis . . 
. . 1800 
Rhynchoeephalia 
. . 
5631 
Phylactolaema . . 
. . 2031 
Rodentia . . 
, . 
. . 
6031 
Phyllopoda . 
. . 2631 
Rotifera . . 
1600 
Phylogeny 
. , 0223 
Rudimentary Organs 
0207 
Physiology 
. . 0211 
Sarcosporidia 
. . 
0431 
Physopoda 
. . 3600 
Saurura) . . . . 
5831 
Phytophthires 
. . 4031 
Scaphopoda 
2231 
Pici 
.. 5831 
Schizopoda 
2631 
Pisces 
. . 54C0 
Scolopendrella 
, , 
, , 
3431 
Plagiostomi 
. . 5431 
Scorpionida 
3031 
Plankton . . 
. . 0219 
ScyphomedusfB . . 
, . 
. . 
0831 
Planipennia 
.. 3631 
Senescence 
0211 
Platyhelmiuthes . . 
. . 1200 
Sense, Organs of . . 
0207 
Plesiosauria 
.. 5631 
Function of 
0211 
Podargidae 
. . 5831 
Sessiliventres 
4631 
Podophthalma . . 
.. 2631 
Sex, Production of 
0211 
Poly ch feta 
. . 1800 
Sexual Relations . . 
0219 
Polyzoa . . 
. . 2000 
Siphonaptera 
. , 
3600 
Porifera . . 
. . 0600 
Sirenia 
6031 
Primates . . 
. . 6031 
Siricidae . . 
4631 
Prochordal a 
. . 5000 
Size, Variations of 
0223 
Procolophonia 
Proctotrupidse 
. . 5631 
. . 4631 
Skeletal Structures (internal) of 
Invertebrates . . 
0207 
Proganosauria 
. , 5631 
Social Relations . . 
. . 
0219 
Proportions, Variations of .. 0223 
Societies, Reports of 
• • 
. . 
0020 
Proeobrancliiata . . 
. . 2231 
Solifuga) . . 
. . 
3031 
Protection 
. . 0219 
Sound Production 
o • 
. . 
0219 
Proteomyxa 
. . 0431 
Spermatogenesis . . 
• . 
. . 
0215 
Protorosauria 
. . 5631 
Spermatozoon 
. . 
0215 
Prototracheata . . 
. . 3200 
Sphegidfe . . 
4631 
Protozoa . . 
. . 0400 
Spongida . . 
0600 
Pselaphognatha . . 
. . 3431 
Sporozoa . . 
. . 
. . 
0431 
Pseudoscorpiones. . 
. . 3031 
Steatornis. . 
6831 
Psittaci . . 
, , 5831 
Steganopodes 
. . 
5831 
Psocidfe . . 
.. 3831 
Stegocephala . . 
5631 
Psychology 
. . 0219 
Stephanidfio 
. . 
4631 
Psyllidae . . 
Stereornithes . . 
. . 
. . 
5831 
Ptenoglossa 
. . 2231 
Stomatopoda 
2631 
Pterocletes 
. . 5831 
Strepsiptera 
4800 
Pteropoda. . 
.. 2231 
Striges 
. . 
6831 
Pterosauria 
. . 5631 
Stromatoporidae . . 
, , 
, . 
0831 
Pulmonata 
. . 2231 
Struthiones 
5831 
Pygopodes 
. . 5831 
Stylo mmatophora 
. . 
. . 
2231 
Pythonomorpha . . 
. . 5631 
Subungulata 
. . 
6031 
Eachiglossa . . 
.. 2'Sl 
Symbiosis . . 
0219 
