we See 
are rei 
Coalegy tae Mince cane el 
Ls A Carboniferous limest 
rHuRST IsLanp, marth Gods t, a thn gp asa Sang aM 98° 45’ W.) 
Spirifer drt Arcticus Haughton, chan ga basaltiform 
Istanp.—Hilloc int (76° N., 111° “45° W.). Productus suleatus 
irifer gen 
Pain 's Lanp.— Wilkie Point (76° 20’ N., 117° 20’ ete “ieee 
we Ctintocke. Monette septentrionalia, Pleurotomaria ———? Nucul 
A review of what was previously known on Arctic geology is given by 
A. K. Isbister in the Quarterly Journal of the Geological aeeaie vol. xi, 
p. 497 (1855), and the paper is cited in this Journal, vol. xxi, p, 318-338 
(1856). This pire ion also a list of nner publeati ons on the subject. 
One of the most important results brought out is the seeming establish- 
ment of the oiadietan long since announced, naa the sea temperature 
the ened wpe goto of ane is showing that species have 
but a narrow range of temperature in which they can flourish in full 
vigor, and even families and tribes have often but a limited range. 20° F. 
(between 68° and 88°) is the whole range of the existing coral reef corals 
—and species have still more restricted limits. The existence therefore 
of the same species of corals, molluscs and trilobites, or of rey! related 
or representative, if not identical, species, in latitudes 40° eads 
to but one conclusion. The near uniformity of the imate is at once 
suggested, and must be admitted until this life-thermometer reads other- 
Whether the relative size of related species indicates a degree of 
difference i is yet undetermined.* 
The J ossils extend the same approximate uniformity onward to 
Thea or prove a recurrence iframe a eit 
A. M” i } - ergot to << Na fa 
stated to be not distinguishable from this), B elemnites 
Unio Liassinus, Professo sing Haughton remarks upon the fossils of Brince 
Patrick’s Land (p. 62), “The discovery of such fossils in situ in 76° 
north latitude, is Tcaloitinteds #5 to throw considerable doubt 2 the theo- 
ries of climate which would account for all nges of temperature 
facts show that the weiss a on pages 78, 79 of this num- 
wip Me oebems 2 detocivs Moreover there not only a wi wider uniformit rmity o: 
climate at that early period, but also picnics toe Aetiolg in all the 
saree and 
-BECOND SERIES, Vor. XXVI, No. 76.—JULY, 1858. 
16 
fa eae 
SURAT SS = 
