ANNIVERSARY ADDRESS OF THE PRESIDENT. XXXIi1 
esting essay on the geology of that district, written by Mr. Jukes 
after his return from Newfoundland. 
In the preface to the ‘ Excursions in Newfoundland’ the author 
excuses the imperfection of the work on the ground that he is again 
leaving England. In fact, in June 1842 H.M.S. ‘Fly’ was des- 
patched, under the command of the late Capt. Blackwood, to survey 
the Barrier reef upon the east coast of Australia, and Mr. Jukes was 
appointed naturalist to the ship, which did not return to England 
till 1846. In 1847 Mr. Jukes published his ‘ Narrative of the Sur- 
veying Voyage of H.M.S. ‘ Fly,’’ in two volumes. 
The ‘Narrative’ is well written, and gives a very vivid and accurate 
account of the places and people visited, if I may judge from what is 
said of those parts of the ground over which it was my fortune to travel 
a few years later. The naturalist, the geologist, and the ethnologist 
will find much valuable information in these volumes; and, to the 
student of geographical distribution, especial interest attaches to Mr. 
Jukes’s suggestion that the different character of the molluscan 
faunze of the north and south shores of Torres Straits is the result 
of the formation of these straits by the depression which gave rise 
to the formation of the Barrier reef ; while the similar elements in the 
land faunee of Australia and New Guinea arise from the direct con- 
nexion of these two masses of land in the time which preceded the 
formation of Torres Straits. 
Shortly after his return to England, in 1846, Mr. Jukes received 
an appointment to the Geological Survey of Great Britain, then 
under the direction of the late Sir Henry de la Beche. He was des- 
patched to North Wales (where Prof. Ramsay was directing the 
operations of the Survey), and did excellent work in mapping the 
district about Bala and Conway during the sumreers of several years, 
while the winters were employed in surveying the Coal-measures of 
his native county. 
The results of the latter work appeared among the publications 
of the Survey in 1853, as a ‘ Memoir on the Geology of the South- 
Staffordshire Coal-fields,’ which is of very great importance, alike in 
its scientific and in its practical bearings. So strongly was its value 
in the latter direction felt by the public, that the first edition of the 
memoir was exhausted in a few years, and of a second revised and 
enlarged edition, which was published in 1858, not a copy now 
remains. 
In 1850 Mr. Jukes was appointed Local Director of the Irish 
branch of the Survey, in room of Prof. Oldham, who had under- 
taken the direction of the Geological Survey of India. In this 
capacity Mr. Jukes laboured for nineteen years, with unremitting 
energy, and the most conscientious desire to do his duty, in a position 
which was full of difficulties, and involved much wear and tear of 
both mind and body. During this period, he edited and largely con- 
tributed to no fewer than forty-two memoirs explanatory of the 
geological maps of the southern, eastern, and western parts of Ire- 
land, executed by the Survey. 
In addition to these labours Mr. Jukes for many years discharged 
