INDEX. 



429 



HUM 



31, 32. At Frankfort, 33. At Got- 

 tingen, 33. His thirst for knowledge 

 under difficulties, 34. A disciple of 

 Lessing and Kant, 40. Makes the 

 acquaintance of Marcus Herz, 40, 41. 

 His English letters to Frau Herz, 41. 

 His reputation as a graceful dancer, 

 41. His letters to Frau Herz, 42, 43. 

 His college life at Frankfort-on-the- 

 Oder, 44. His mother's wishes re- 

 specting his education, 45. His brother 

 William's account of him, 46. His 

 letters from Frankfort, 49. His 

 friendship with a theologian named 

 Wegener, 52. Keturns to Berlin, 53. 

 Studies the technology of manufac- 

 tures, 53. His intimacy with Reite- 

 meier, 53. Eeceiving instruction in 

 Greek from Bartholdi, 54. His 

 opinion of Greek, 54. His letter to 

 Wegener in Greek, 54. Commences 

 the study of botany, 55. His letter 

 to Wegener on the subject, 55-57. 

 Receives instructions in French from 

 M. le Bauld de Nans, 58. And on 

 technology from Zollner, 58. Hum- 

 boldt's study of applied mathematics, 

 59, 67. His journey to Gottingen, 

 67. At Magdeburg on the way, 68. 

 At Helmstadt. 68. At Brunswick, 

 69. Enrolled at Gottingen, 69. His 

 work there, 73. His description of 

 the professors, 73. His account of 

 his brother and of himself, 76. His 

 work on the weaving-loom of the 

 ancients, 76. Investigates the linen 

 cloth employed in the envelopment of 

 mummies, 78. His interest in natural 

 science, 78. Makes a scientific tour 

 with Herr von Geuns, 79. His letters 

 to his mother and to Kunth, 80. His 

 work on 'The Aqueous Origin of 

 Basalt,' and ' The Metallic Seams in 

 the Basalts at Unkel,' 81. His gra- 

 titude to the university, 83. His 

 first sight of Cologne cathedral, 87. 

 Forster's reflections respecting this 

 visit, 87, 88. Humboldt's letter to 

 Wegener, 88. In England, 88. His 

 journal on his journey, 91. Goes 

 through Paris on his return, 91. His 

 remarks on Konig's ' George Forsterat 

 Home and Abroad,' 92. Makes the ac- 

 quaintance of Sommering, 94. His 

 letter to Werner at Freiberg, 94. 

 His studies and mode of life at 

 Hamburg, 97. Reads Pliny's work 

 on painting, 98. Measures the waves 

 of the Elbe in a storm, 99. Inter- 

 course he enioyed in the house of 



HUM 



Sieveking at Hamburg, 99. His 

 letters to various persons, 100-105. 

 His study of botany, 105. His 

 sketch of his future public life, 105. 

 His official appointments, 107. At 

 Freiberg, 107, 109. His 'Flora 

 Subterranea Fribergensis,' 111. His 

 papers for various publications, 114. 

 Leaves Freiberg, 114. His letter to 

 Fischer, 115. His grateful recol- 

 lections, 115. At the centenary of 

 Werner's birth, 115. His character, 

 116, 117. His official employment, 

 118. Receives his commission, 122. 

 His erection of a steam-engine, 123 

 note. His official work, 124. His 

 reports commended by the ministers, 

 i. 125, 126. Appointed Superinten- 

 dent of Mines in the Franconian 

 principalities, 126, 127. His letter 

 to Freiesleben, 127. Busy at his 

 work, 128, 129. At Vienna, 129. 

 His projected map of the salt streams 

 of Germany, 130. At Breslau, 130. 

 Elected associate of the Leopold- 

 Charles Imperial Academy of Natural 

 Science, 131. Address presented at 

 his election, 131. His investigations 

 on the absorptive properties of sponge, 

 132. Publishes his 'Flora Friberg- 

 ensis,' 132. His letters to Watten- 

 bach and Girtaner, 132. Visits his 

 brother and his family at Erfurt, 133. 

 His benevolent employments, 135. 

 His free school for miners at Steben, 

 135. Flattering reception of his 

 * Flora Fribergensis,' 137. His work 

 on the Nerves and Muscles, 139. 

 His investigation of saltworks, 140. 

 Takes part in some diplomatic nego- 

 tiations, 141. Appointed as Actual 

 Counsellor of the Upper Court of 

 Miries, 143. His plans, 143. His 

 sacrifice at the shrine of science, 144. 

 Goes on a tour with Lieutenant von 

 Haften and with Karl Freiesleben, 

 145. Resultof his official labours, 145. 

 His letter to Willdenow, 146. Good 

 use of his time, 147. Visits Rastatt, 

 147. Returns to his duties, 148. 

 His proposed work on the inclination 

 of the strata with respect to the 

 horizon, 149. His proposed work on 

 The Excitability of the Fibres of 

 the Muscles and Nerves,' &c., 149. 

 His experiments, 149-151. His zeal 

 in scientific investigations, 151. His 

 respirators and safety lamps, 152. 

 Visits Berlin to see his sick mother, 

 153. Goes on a diplomatic commis- 



