Royal Geological Society of Cornwall. 303 
habits of observation. In considering the very great advantages 
derived by the ¢raveller from this study, he paid a high yet well- 
metited compliment to Sir Humphry Davy, in nearly the follow- 
ing terms ; —‘ Nor is it only as enabling him more fully to en- 
joy the natural productions of the countries he visits, that a know- 
ledge of natural history is useful to the traveller: it is a sure 
introduction and passport to the most valuable acquaintance. 
Science, like a nobler freemasonry, unites in bonds of friendly 
fellowship all its cultivators, without regard to kindred, tongue, 
or nation; and to bea distinguished chemist, mathematician, or 
naturalist, is to have an irresistible claim on the attention and 
regard of all the noblest minds of all nations. With this intro- 
duction and passport, our truly illustrious townsman, Sir Hum- 
phry Davy, is at this very moment riding in triumph through 
all the most polished nations of Europe. With a consequence 
which rank or riches alone never could confer, he passes from 
city to city, conscious that his name alone will procure him that 
attention which the common traveller must want, or owe to other 
means. To the great and learned of every land he can freely 
express all his wishes, assured of their ready gratification: in 
every University and Society, nay in every palace, He 
“ Claims kindred there, and has his claims allow’d.” 
2. An extremely interesting paper by Mr. Jos. Carne, ** On 
the relative Age of the Veins of Cornwall ;” in which the inge- 
nious and jndustrious author attempts by fair deductions from an 
immense collection of facts to establish six or seven classes of 
veins, differing in the order and period of their formation. This 
paper does not admit of abridgement. It is of considerable 
length, and was characterized by the Secretary, who read it, as 
the most valuable communication that had yet been presented.to 
the Society. 
3. Two very valuable papers from the pen of the Jearned Mr. 
John Hawkins: one ** On the Nomenclature of theCornish Rocks,” 
as fixed by Werner, from specimens presented to that great geo- 
logist by Mr. Hawkins: another * On Floors of Tinstone.” On this 
occasion the Society elected Mr. Hawkins an honorary member. 
4, A paper “ On the Hornblend Formation of the parish of St. 
Cleer, and on the Geology of other parts of Cornwall,”’ by the 
Rev. Mr. John Rogers. In this communication the author de- 
tailed the various relations and localities of this formation, and 
illustrated the whole by a map of the district, and numerous spe- 
cimens of the rocks. Several interesting specimens were also 
presented by Mr. Rogers, from the slate quarries of- Tintagel, il- 
lustrating the nature of those appearances that have hitherto 
been generally considered as exhibiting the impression of shells, 
and, 
