INDEX. 



379 



Pycnogonum, 121 



QUATREFAGES, his works, 105, n. ; 

 109, n.; 109, n. 1; 110, n. 1; 117, 

 n. 2; 122, n. 1; 163, n. 2 



QUENSTEDT, his works, 1 42, n. 4; 144, 

 n. 1; 145, n. 1 



QUETELET, his work, 133, n. 1 



Radiata, a primary division of the 

 animal kingdom,40 ; their classes, 106 



RANG, see SANDER-RANG 



Rangeof distribution of animals, 31, n. 



RATHKE, his works, 103, n. 1; 111, n. 

 1; 119, n. 2; 120, n. 1; 121, n. 1; 

 122, n. 1; 124, n. 1 and 2; on the 

 embryology of Articulata, 130 



RATZEBURG, his works, 85, n. 2; 188 



Reality or ideality of the existence of j 

 species, genera, families, etc., 252 



Recapitulation, 199-206 



REAUMUR, his work, 85, n. 1; 213 



REEVE (LOVELL), his work, 44, n. 3 



REICHEHT, his works, 102, n. 1; 122, 

 n. 1; 124, n. 2 



REID, his paper, 111, n. 



Relations between animals and plants 

 and the surrounding world, 84-94 



Relations between the structure, the 

 embryonic growth, the geological 

 succession, and the geographical 

 distribution of animals, 181-185 



Relation of Individuals to one ano- 

 ther, 94-99 



Relative standing of the four branches 

 of the animal kingdom, 38 



REMAK, his work, 124, n. 2 



Reptiles, their standing, 40; a distinct 

 class of Vertebrata, 124 



Representative species in the succes- 

 sive geological periods, 81 



RETZIUS, his work, 122, n. 1 



REUSS, his work, 142, n. 4 



Revolutions (The) of the members of 

 our Solar System compared to the 

 arrangement of leaves in plants, 192 



Rhizopoda, their true nature still 

 doubtful, 113, probably Algse, 289 



RICHARDSON (SiR JOHN), his works, 

 45, n. 2 



RIDINGER, his works, 97, n. 1 



ROBIN (On.), his work, 186, n. 1 



ROGET, Bridgwater Treatise, 11, n. 



ROMER (F. A.), his work, 142, n. 4; 

 144, n. 1 ; 145, n. 1 



ROQUAN, his work, 145, n. 1 



Rotifera are Crustacea, 164 



Rosel, his works, 100, n. 1; 124, n. 2; 



213 



ROUGET, 104, n. 

 RouLiN,his paper, 111, n. 1 

 Roux, his work, 142, n. 4 

 RUDOLPHIN, his works, 45, n. 1 

 Rugosa, 162; their affinities, 170, n. 

 RUPPELL, his paper, 190, n. 3 

 RUSCONI, his works, 122, n.l; 124,n.2 

 Salpce, 138 



SALTER, his paper, 145, n. 1 

 SANDBERGER (G. & FR.), their works, 



142, n. 4 

 SANDER-RANG, his work with FENIS- 



SAC, 44, n. 3 

 SARS, his works, 103, n. 1; 109, n.; 



110, n. 1; 113, n. 2; 138, n. 1 

 SAUSSINE (H. DE), his paper, 120, n. 1 

 SAVIGNT, his works, 24, n. 2; 108, n. 3 

 SCHEITLIN, his work, 88, n. 

 SCHEUCHZER, his work, 142, n. 3 

 SCHEUTER (A.), his paper, 121, n. 1 

 SCHIMPER, his work, 150, n. 2 

 SCHLEGEL (FR.), his work, 98, n. 

 SCHLOTTHEIM, his work, 141, n. 1 

 SCHMARDA, his work, 19, n.; 48, n.; 



118, n. 1 



SCHMERLING, his paper, 145, n. 1 

 SCHMIDT (A.), his paper, 116, n. 2 

 SCHMIDT (0.), his paper, 109, n. 1; 



110, n. 1 



SCHNEIDER, his paper,lll,n.; 113,n.2 

 SCHOUW, his work, 19 n. 

 SCHUBERT (T. D.), his paper, 121, n. 2 

 SCHUBLER, his work, 133, n. 1 

 SCHULTZE (M.), his works, 105, n.; 

 106, n.; 110, n. 1; 113, n. 2; 117, 

 n. 2; 122, n. 1; 290, n. 

 Science, its true limits, 13, 281 

 SCILLA (Ac.), his work, 142, n. 2 

 Scincoids, their classification and geo- 

 graphical distribution, 65 

 SEDGWICK, his works, 32, n. 1 

 Selachians, a distinct class of Verte- 

 brata, 123, n. 1; first distinguished 

 by Aristotle, 302 

 SEMPER, his papers, 111, n.; 120, n. 



1; 121, n. 2 

 Series in the animal kingdom, 20, 34, 



36, 38, 40, 69, 343 

 Serial connexion among animals, 64- 



69 



Sexual relations among animals con- 

 sidered as a criterion of specific dif- 

 ferences, 250 



