30 ANNIVERSARY ADDRESS. 



(made in March, I860). In the ''Bulletin de la Societe Geologique 

 de Trance" (2 ser. tome 24, No. 4, p. 438-451), we find a 

 " Notice of the Geology of New Caledonia," by M. Gamier, 

 followed by a " Notice on the Eocks of the Colony," by Mons. 

 Ed. Jannettaz (p. 451-3) ; and further on (p. 457), is a " Notice 

 of the Eossiliferous Eocks of the Caledonian Archipelago," by 

 Mons. P.' Fischer, read on 18th March, 18G7, to the Society by 

 M. d'Archiac, in relation to Garnier's paper. 



Lastly, in the 12th volume (6th ser.) of the Annates cles Mines, 

 there is a more extensive, general, and detailed account of the 

 geology, headed " Essai sur la Geologie et les JRessources Minerales 

 de la JSfouvelle Caledonie, par Mons. Gamier, Ingcnieur Civil" 

 extending through ninety-two pages, and dated " Paris, 12 Mars, 

 1867." 



Some time in 1858 or 1859, a visit was paid to me by an official 

 gentleman from New Caledonia, bringing a collection of rocks 

 and minerals, which were examined in the presence of M. Jou- 

 1)ert, when we saw so much resemblance between them and those 

 of the neighbourhood of Bingera, in New South "Wales, as to 

 lead me to report an opinion confirmatory of it, which I after- 

 wards printed in a note to my paper read before the Philosophical 

 Society on 20th Nevember, 1861, and which was afterwards 

 quoted by M. Gamier in three of his publications. 



Subsequently, in March, 1863, I received by the hands of 

 Lieut. Bonnefin, of H.I.M.S. " Caledonienne," a collection of 

 specimens from M. Gamier, in which were, with the rocks of the 

 north, minerals, including Chromate of iron and the Nickel 

 mineral, with coal from Mont d'Or ; and in a series of letters, 

 commencing in 1864, I was favoured with that gentleman's 

 private account of his discovery of these things. In one of these 

 letters he notices my detection of gold in one of his specimens. 



Admiral Erskine, then in command of H.M.S. " Havannah," 

 had contributed to my collections, the former by specimens of 

 Silurian limestone from Hienguene ; the locality, " Gates of 

 Yengen," being illustrated by sketches made for me by Mr. 



