HOVEY: ARTESIAN WELL AT KEY "WEST. 77 



very few discoid Orbitoides are present. Shells and casts of lamellibranchs 

 numerous. Casts of gastropods. Spines and plates of echini. Some frag- 

 ments of shells show the effects of boring organisms. Some bryozoa, both 

 branching and incrusting. 



825 feet. — Color very light yellowish brown. Sample is finer grained 

 than the last. Small amount of quartz sand, one rounded particle of which 

 measured more than .5 mm. in length. Ovules present in considerable num- 

 bers. In this and other cases the concentric structure is evident when the 

 ovule is broken across. The rock seems to have been somewhat compacted. 

 More secondary calcite than usual. Many shells and casts of lamellibranchs 

 and few of gastropods. Spines of echini and the facetted fragments. Annelid ? 

 tubes. Foraminifera. Bryozoa. Some spicules of Gorgonia. A very few 

 fragments of discoid Orbitoides. 



850 feet. — Color very light yellowish brown. Sample is a fine sand, nine 

 tenths of which passed through the No. 40 mesh sieve. Trace of the quartz 

 sand. Foraminifera of several genera abound. Some small fragments of coral. 

 Branching and incrusting bryozoa of several genera were observed. Many 

 shells and casts of minute lamellibranchs. Internal casts of very small gastro- 

 pods. Spicules of Gorgonias numerous. Ovules also frequent. Spines of 

 echini. Orbitoides ? very scarce, but Cristellaria ? Amphistegina ? Orbitolites ? 

 etc., numerous. 



875 feet. — Color very light yellowish brown, like the last. Mere trace of 

 the quartz sand. Sample is meagre in determinable organisms. Ovules not 

 very numerous. Spicules of Gorgonia, spines of echini, and remains of lamelli- 

 branchs are present. Some pieces of brown granvdar calcite. Orbitoides not 

 observed. 



900 feet. — Color, very light yellowish brown. Trace of quartz sand as in 

 last. A few small fragments of loosely compacted rock. Foraminifera of sev- 

 eral genera. Orbitoides in numbers appear. Some small bits of madrepore 

 and other coral. Many shells and casts of small lamellibranchs. Gastropods 

 not definitely recognized. Fragments of tests of echini. Nnlliporea ? Spic- 

 ules of Gorgonias. Ovules not very numerous. Some bits of brown granular 

 calcite. 



925 feet. — Color very light yellowish brown. Many white particles. Faint 

 trace of quartz sand. Ovules not numerous, but there are some pieces of 

 oolite. Foraminifera abound among which Orbitoides are very numerous. 

 Some few fragments of madrepore coral. Bits of echini occur, and one little 

 fragment suggests the arm of an astrophyton. Remains of lamellibranchs are 

 common, but those of gastropods are rare. Spicules of Gorgonias in numbers. 

 Bryozoa not rare. Most of the determinable fragments are foraminifera. The 

 whole sample looks like a moderately coarse beach sand rather than crushed 

 rock. 



950 feet. — Color light yellowish brown. Texture same as preceding. Faint 

 trace of quartz sand. The sample is a loose fine sand in which ovules are 

 numerous. Foraminifera (Orbitoides, etc.) abound. Bits of madrepore coral 



