HOVEY: ARTESIAN WELL AT KEY WEST. 67 
they begin to abound again, and are either relatively or absolutely 
numerous in nearly every sample from that point to the bottom, though 
they are few in number at 750, 1,075, 1,225, 1,350, 1,450, 1,950, and 
1,975 feet, and seem to be lacking from the samples from 775 and 875 
feet below the surface. ‘The samples from 1,625, 1,650, and 1,775 feet 
are especially rich in these organisms. Foraminifera of the genus 
Orbitoides seem first to appear in abundance at 900 feet from the surface. 
From this depth down to 1,875 feet, apparently the same species of 
Orbitoides are more or less abundant. At 1,375 feet a very steeply coni- 
cal Textularia appears, and together with a more obtuse form is persistent 
to the bottom, sometimes even outnumbering the Orbitoides. The largest 
Orbitotdes were from the depths of 1,375 and 1,400 feet and measured 3.5 
and 4 mm. across. 
Bits of coral are present in small numbers in about half the samples, 
but are not numerous enough at any depth to warrant calling the sam- 
ple a “соға! sand," though of course many of the undeterminable frag- 
ments may have been derived from corals. Taken asa whole, there are 
more bits of lamellibranch shells and casts of the interior than any 
thing else in the referable fragments; next to these in point of numbers 
come foraminifera ; then follow echinoderms, corals, bryozoa, and gastro- 
pods. Below the depth of 1,425 feet foraminifera greatly predominate 
in the meagre recognizable remains in many of the samples. Besides 
the organisms just mentioned there were recognized occasionally Denta- 
lium, Gecum, tubes of Spirorbis and other annelids, spicules of Gorgonia 
and bits of what seemed to be nullipores. At 425 feet a single brachi- 
орой (-Orstella ?) was noted. At 300, 500, and 525 feet from the surface 
the thin sections showed a network of tubes reminding one strongly of 
the Paleozoic genus Stromatopora. These are referred doubtfully to the 
nullipores. With the exception of a few of the lamellibranchs and 
some of the echinoderms, minute animals are indicated by the remains. 
In 4 few cases with the lamellibranchs and the gastropods the genus and 
even the species could probably be determined from the fragments, and 
all the foraminifera could. be determined or described, but the echini 
and corals are entirely undeterminable, and the other organisms are 
probably so. Many of the samples look very much like the calcareous 
sand forming the beach two or three miles west of Nassau, New Provi- 
dence, and elsewhere in the Bahamas, judging from specimens of such 
sand kindly furnished the writer by Prof. R. P. Whitfield. 
A condensation of the detailed record of the well as obtained from 
the study of the samples is as follows : — 
