president's address — SECTION D. 195 



A useful compendium of this journey, compiled from Leichhardt's 

 lectures in Sydney on the subject. Prominence is given to his botanical 

 explorations. It usefuHy supplements the previous work, (l) 



Mueller. — Then we come to an important series of papers, &c., 

 by Mueller, referring to the botanical exploration accomplished by 

 Gregory's expedition, of which Mueller was botanist. 



1. Dr. Ferdinand Mueller and " The North Australian Expedi- 

 tion." (Hooker's Journ. of BoL, VIIT., 2, 1856.) 



Houghly the design of the expedition was to explore the Northern 

 Territory from the Victoria River, on the northern coast, to the head 

 waters of the rivers flowing into the Gulf of Carpentaria. 



This paper is chiefly taken up with two letters from Mueller to 

 Sir William Hooker, in which he refers to his plans and expectations 

 in regard to botanical work. 



2. Note on the voyage of the North Australian Exploring Expedi- 

 tion from Sydney to the mouth of the Victoria River, extracted from 

 a letter of Dr. Mueller (botanist to the expedition), dated on board 

 The Monarch, September 3rd, 1855. (Hook. Journ. BoL, VIII., 46.) 



The portion of the letter referrina; to Northern Australia refers to 

 a list of plants collected at Quail Island, and another at the entrance 

 to the Victoria River (September 1 9th). 



3. " North Australian Botany, Observations on, by Dr. 

 Frederich {sic) Mueller, botanist to the North-West Australian Govern- 

 ment Expedition, under the command of Mr. Survevor Gregorv." 

 (Hook. Journ. of Bot., VIII., 321.) 



This is a letter from the main camp on the Victoria River, June 

 18th, 1856. addressed to Sir W. J. Hooker. 



It is a valuable preliminary report of the botanical results of the 

 expedition, and refers to about 800 species. 



4. " Nova genera et species aliquot rariores in plagis Australice 

 intratropicis nuperrime detecta,^^ exposuit Dr. F. Mueller. (Hooker's 

 Journ. Bot., IX., 14, 1857.) 



Latin descriptions of a large number of plants. 



5. " Notes made during the Recent Expedition across the Northern 

 Portion of Australia, under the command of Mr. Surveyor Gregory, 

 bv Dr. F. Mueller, Colonial Botanist of Melbourne, and Botanist to the 

 Expedition." (Hooker's Journ. Bot., IX., 165.) 



This is a letter, dated Melbourne, January 14th, 1857 : very 

 interesting to every student of the flora of North Australia. Mueller 

 estimated " the number of distinct plants, as collected within the intra- 

 tropical zone of Australia " at 1,500 species, of which he believed 500 

 to be nondescript. 



(I) John Macgillivray's " Narrative of the Voyage of H.M.S. Rattlesnake,'''' com- 

 manded by . . . Capt. 0. Stanley .... 1846-50 .... 

 to which is added . . . " E. B. Kennedy's Expedition for the Exploration 

 of the Cape York Peninsula," London, 1852, 2 vols., 8vo., may be referred 

 to. Port Essington was visited amongst other places, and his specimens 

 are now at Kew. 



