BRITISH ASSOCIATION MEETING AT NEWCASTLE. 
459 
heads near tbe eve, and notice the point in the hillside where the line 
P P falls ; pace to the spot, and note down the number of steps. Start 
afresh from that point to the next similarly determined, and again noting 
the number of steps ; and so 
on. Thus on j^our note-book 
you will have entered a series 
of numbers ; and that, in — 
each of the intervals so noted, 
you have ascended by the ^ 
height of your own eye above <^ 
the point at which you start- 
ed. Should the hillside be too steep to pace it. a measuring tape may be 
used. By ruling on a piece of paper parallel lines at the distance of the 
height of your eye to the scale you wish to use, it is extremely easy to 
lay down the contour of the hill from these notes. 
I remain, Sir, faithfully yours, 
O. FiSHEE. 
Elmstead. Colchester, November 3rd, 1863. 
BEITISH ASSOCIATIO:^^ MEETING AT NEWCASTLE. 
{Continued from p. 395.) 
ON SOME FOSSIL AND RECENT FOEAMINIFERA COLLECTED IN 
JAMAICA BY THE LATE MR. LUCAS BARRETT, F.G.S. 
By Professor T. Rupert Joxes, F.G.S., and W. K. Parker, Esq. 
In 1862 Mr. L. Barrett, F.G.S., late Director of the Geological Survey 
of the West Indies, gave Messrs. Jones and Parker some fossil and recent 
Foraminifera from Jamaica, comprising a few new forms — some that were 
previously but little known, and some in finer condition of growth than 
usual. The recent specimens, from their ascertained habitats, illustrate, 
to some extent, the conditions under which the fossil forms were deposited. 
One sample of these fossil Jamaican Foraminifera consisted of several 
specimens of Amphlsiegina vuhjaris, and another of a few of the same 
species, with one Textularia Barreiiii (a new variety of Textidaria). No 
locality nor geological horizon was indicated for these. A third sample, 
from " Soutli Hall Cliff," consisted of two large specimens of VafjinuUna 
leffumen. Fourthly, a much larger series of Foraminifera, from the 
" Pteropod-marl " of Jamaica, affords Nodosaria BapJianiAtriim, Denta- 
lina acicula, Yagimilina striata, Frondicularia complanata, Cristellaria 
calcar, C. cultrata, C. rotulata, C. Italica, Orhitolina vesimdaris, Buli- 
inina ovata, CuncoHna pavonia, Vertehralina striata, and Lituola Sol- 
danii. These, however, can be regarded only as an incomplete Ehizopodal 
fauna. 
From the recent Foraminifera obtained by the late Mr. Barrett from 
different sea-zones, between 15 and 250 fathoms, on the Jamaica coast, 
we learn that Amphistegina vuhjaris, Textularia Barrettii, Dentalina 
acicula, Frondicularia complanata. Cristcllarice, and Lituola Soldanii in- 
dicate at least 100 fathoms, and probably more, as the depth .at which 
the Pteropod-marl and the Aniphistegina-beds were deposited in that 
region. Pteropods are found in some sea-muds at similar depths. , 
Of the recent Jamaican specimens (evidently only the larger and more 
