n: 
40 
Pauropoda 
3431 
Radiolaria 
. , 
0431 
Pedagogy . . 
0050 
Regeneration 
0215 
Pedipalpi . . 
. . 
303 L 
Reproduction 
, . 
0215 
Pelagic Animals . . 
*. . 
• . . 
0219 
Reproductive Organs 
. . 
0207 
Pelecinida) 
. . 
4631 
Reptilia . . 
. . 
5600 
Pelecypoda 
2213 
Resemblances 
. . 
0219 
Periodicals 
0020 
Respiration 
, , 
0211 
Peripatus . . 
. . 
3231 
Respiratory Organs 
0207 
Perissodactyla 
. . 
6031 
Rheae 
, . 
5831 
Perlidee 
3831 
Rliipidoglossa 
, , 
2231 
Phalangida 
3031 
Rhiptoglossa 
5631 
Phasmidas. . 
. . 
3831 
Rhizopoda 
0431 
Phenology 
. . 
0219 
Rhopalocera 
4431 
Philosophy 
. . 
0000 
Rhynchosauria . . 
5631 
Phoenicopteri 
. . 
5831 
Rhynchota 
4000 
Phoronis . . 
. . 
1800 
Rhyncliocephalia 
5631 
Phylactolaema . . 
. . 
2031 
Rodentia . . 
6031 
Phyllopoda 
# , 
2631 
Rotifera . . 
1600 
Phylogeny 
0223 
Rudimentary Organs 
0207 
Physiology 
. , 
0211 
Sarcosporidia 
• • 
0431 
Physopoda 
. . 
3600 
Saururte . . 
5831 
Phytophthires 
. . 
4031 
Scaphopoda 
2231 
Pici . . . . 
5831 
Sehizopoda . . 
2631 
Pisces 
. . 
54C0 
Scolopendrella . . 
. # 
3431 
Plagiostomi 
. , 
5431 
Scorpionida 
3031 
Plankton . . 
# # 
0219 
Scyphomedusoe . . 
, # 
0831 
Planipennia 
, , 
3831 
Senescence 
, # 
0211 
Platyhelminthes . . 
. , 
1200 
Sense, Organs of . . 
, . 
0207 
Plesiosauria 
* 
. , 
5631 
Function of . . 
, , 
0211 
Podargidae 
5831 
Sessiliventres 
, # 
4631 
Podophthalma 
. . 
263 L 
Sex, Production of 
0211 
Poly cine ta 
1800 
Sexual Relations . . 
, . 
0219 
Polyzoa . . 
2000 
Siphonaptera 
3600 
Porifera . . 
, . 
0600 
Sirenia 
, # 
6031 
Primates 
, , 
6031 
Siricidae . . 
, # 
4631 
Prochordata 
5000 
Size, Variations of 
9 # 
0223 
Procoloplionia 
. . 
5631 
Skeletal Structures (internal) 
of 
Proctotrupida) 
4631 
Invertebrates . . 
0207 
Vroganosauria . . 
, . 
5631 
Social Relations . . 
0219 
Proportions, Variations 
of 
. . 
0223 
Societies, Reports of 
0020 
Prosobranchiata . . 
. , 
2231 
Solifugee . . 
, , 
3031 
Protection 
, . 
0219 
Sound Production 
0219 
Proteomyxa 
. . 
0431 
Spermatogenesis . . 
0215 
Protorosauria 
. . 
5631 
Spermatozoon 
0215 
Prototracheata . . 
, . 
3200 
Sphegidae . . 
4631 
Protozoa . . 
0400 
Spongida . . 
0600 
Pselaphognatha . . 
. . 
3431 
Sporozoa . . 
0431 
Pseudoscorpiones. . 
. . 
3031 
Steatornis.. 
5831 
Psittaci . . 
5831 
Steganopodes 
• . 
6831 
Psocidse . . 
3831 
Stegocephala 
5631 
Psychology 
. . 
0219 
Steplianidee 
. . 
4631 
Psyllidae 
. . 
4031 
Stereornithes 
5831 
Ptenoglossa 
. . 
2231 
Stomatopoda 
2631 
Pterocletes 
. . 
5831 
Strepsiptera 
• . 
4800 
Pteropoda. . 
. . 
223 L 
Striges 
5831 
Pterosauna 
5631 
Stromatoporidee . . 
0831 
Pulmonata 
• , 
2231 
Strutliiones 
, . 
5831 
Pygopodes 
. . 
5831 
Stylommatopliora 
2231 
Pytlionomorpha . . 
. . 
5631 
Subungulata 
• • 
6031 
Kachiglossa 
. 
2231 
Symbiosis.. 
.. 
0219 
