EESIDENCE AT BERLIN TO THE REVOLUTION OF JULY. 115 



than was the penetration of the youthful Schlegel into the 

 camp of Mcolai. The following three lectures embraced the 

 history of the study of our globe, which was divided into six 

 epochs, in many points corresponding with the eight epochs 

 found in the second volume of ' Cosmos,' and with them were 

 incorporated an outline of the history of natural philosophy 

 now forming the introduction to the third volume. It is 

 remarkable with what clearness even at this period, before 

 he had entered upon his severer historical studies, he brought 

 out the important influence exercised by Arab races upon 

 civilisation. Among the inventors of scientific instruments, 

 Erman, a Berlin physicist, received honourable mention. The 

 ninth and tenth lectures upon the incitements to the study 

 of nature, corresponding with the first part of the second 

 volume of ' Cosmos,' contained remarks upon landscape-paint- 

 ing and descriptive poetry, in which he frequently alluded to 

 the early impressions that first led him to the study of nature, 

 instancing among other things the sensation produced by 

 the beauty of exotic plants as seen in botanic gardens ; to 

 this section was appended a list of authorities. During the 

 following lectures of a more specrfic character, this list is 

 much more voluminous, though admitting only of a feeble com- 

 parison with the valuable notes in 4 Cosmos.' The facts gathered 

 from the observation of natural phenomena, subsequently 

 treated of in the third and following volumes of 'Cosmos,' 

 extended over fifty-one lectures ; the method of their arrange- 

 ment is given in the preface : sixteen lectures were devoted 

 to astronomy ; five to the form, density, and internal heat of 

 the earth, terrestrial magnetism, and the phenomena of Aurora 

 Borealis ; four to the corjsolidated crust of the earth, hot 

 springs, earthquakes, and volcanoes ; two to mountain structure 

 and types of formations ; two to the form of the earth's surface, 

 the configuration of continents, and the upheaval and splitting 

 of rocks ; three to the liquid envelope the ocean ; ten to the 

 elastic fluid envelope the atmosphere, and the distribution of 

 heat ; one to the geographical distribution of organic struc- 



' certainly no antiphilosophic meaning.' He declined to attend to any appeal 

 founded on notes taken down during the lecture, nevertheless in his own 

 outline occurs the expression : ' Protest against Hegel.' 



i 2 



