INDEX 



335 



Rome, Freethought Congi'ess at, 



316 

 Eoux, Professor, 249 

 Russia, travels in, 259 



S 



Scandinavia, visit to, 257 



Schiller, 42, 43 



Schleiden, M. J., 47 



Schleiermacher, 27-8 



Schmidt, Dr., 307 



School-days at Merseburg, 34 



Schopenhauer on Darwinism, 132 



Schwann, Theodor, 65 



Scientific method, variations of, 48 



Scilla bifolia, search for the, 51 



Scotland, visit to, 257, 259 



Sea-urchin, fertilisation of the, 257 



Seebeck refuses Haeckel's resigna- 

 tion, 254 



Semon, 43 



Sergi, Professor, 319 



Sethe, Anna, 81, 100 

 ,, , Bertha, 26 



, Christian, 21, 22 

 , Christoph, 21, 25 



Siphonophores, the, 246 



Social Democrats, the, 285, 301 



Soul, unity of the, 161 



Spain, Haeckel's visit to, 252 



Specialism in science, 48 



Species, early difficulties about, 

 37-8 

 ,, idea of fixity of, 105 



Sponge, nature of a, 271 



Sponges, Haeckel's study of the, 

 270 



Spontaneous generation, Haeckel's 

 early opposition to, 77 



Spontaneous generation, possibility 

 of, 136 



Stereometric structures, 215 



Stephen, Sir Leshe, 307 



Stettin, Congress of, 145 



5> 



»> 



Stocks, animal, 211 



Strauss, 83 



Struggle for life, the, 119 



Studies of the GastrcBa-theory, the, 



277 

 Sumatra, Haeckel in, 260 

 Superstition in Italy, 315 

 System of the Medusce, the, 287 

 System of tlie Si;phonqphorce, the, 



249 

 Systematic Phylogeny, the, 291 



Tadpole, the, 220 



Teeth in yoimg parrots, 223 



Teneriffe, 240 



Terminology created by Haeckel, 



36 

 Theological critics of Haeckel, 298, 



305 

 Theology, Haeckel's rejection of, 



75-6 

 Tiara, 176 

 Tierra del Fuego, 103 

 Tissues of the Craiv-fish, the, 77 

 Tjibodas, 260 



Training, early, of Haeckel, 32 

 Transfoi-mism, 111 

 Translations of Haeckel's works, 



294 

 " Travel Pictures," 84 

 Travels of Haeckel, 256 

 Tree-frog, the, 119 



U 



Unicellular animals, 94, 98 

 Unity of nature, the, 235 

 Unnucleated organisms, 180 

 Utrecht Society of Art and 

 Science, 248 



Venus of Milo, the, 191 

 Vienna, medical studies at, 80 



