78 NATURAL SCIENCE. j,.,^^... 



of the Bahr-el-Jebel, the main affluent of the White Nile. For these 

 services to geographical science Col. Grant received the gold medal 

 of the Royal Geographical Society and a C.B.-ship, his C.S.I, being 

 subsequently earned in the Abyssinian expedition of 1868. In 

 biological science Col. Grant will be long remembered by his impor- 

 tant memoir on the botany of his African expedition, published in 

 the Transactions of the Linnean Society, while his memory will also be 

 kept green in men's minds by that most beautiful of all African 

 gazelles, which the late Sir Victor Brooke so appropriately named 

 Gazella gvanti. 



WILHELM JUNKER. 

 Born April 14, 1840 — Died February 14, 1892. 



ALMOST immediately after that of Col. Grant, the death of 

 another eminent African explorer is announced. At the com- 

 paratively early age of 52, Dr. Wilhelm Junker died on the 14th 

 ult. at St. Petersburg. Born at Moscow in 1840, Dr. JunJker left 

 his native country at an early age to study in the Universities of 

 Gottingen, Berlin, and Prague, and his first African journeys were 

 in Tunis and Lower Egypt. In 1876 he visited the Soudan, and 

 in 1879 advanced further into the interior of Africa, where he was 

 hindered by the insurrection of the Mahdi, and prevented from 

 returning until 1886. Vols. II. and III. of Dr. Junker's work descriptive 

 of these later travels have already been published in Vienna. 



HENRY WALTER BATES. 

 Born February 8, 1825 — Died February 16, 1892. 



ANOTHER pioneer in the investigation of the Natural History 

 of the Tropics has just passed away in the person of Mr. H. 

 W. Bates, F.R.S., the esteemed Assistant Secretary of the Royal 

 Geographical Society. Born at Leicester in 1825, Mr. Bates was 

 educated for a mercantile career ; but his mind was from the first 

 imbued with a love of science that led him to devote all his leisure to 

 the practical study of the Natural History of the country round his 

 native town. Eventually, at the age of 23, he decided to relinquish 

 business for purely scientific pursuits; and in 1848 he left England 

 with Mr. Alfred Russel Wallace, for the exploration of the Amazons. 

 For four years in the company of Mr. Wallace, and for seven years 

 subsequently alone, Mr. Bates was occupied in studying the people, 

 geography, and natural history of that region of South America. He 

 not only made large collections, which were forwarded to the British 

 Museum, and other European museums, but also studied Tropical 

 Nature with the closest attention, and obtained results of the highest 

 philosophical importance. To Entomology, especially, Mr. Bates 



