276 BONE CAVE AT PORT KENNEDY. 



Subdivision 2. 



Four to eleven feet. 



A zone of reddish-yellow sandy clay, showing finer waving lines of stratifi- 

 cation, distinguished by slight differences in shade, containing fragments of 

 limestone, occasionally water-rolled, of from one-half inch to two feet in 

 diameter, fragments of sandstone sometimes water-rolled and small quartzite 

 pebbles, together with numerous bones and teeth of large mammals. Apparently 

 lacking vegetal and smaller animal remains, the zone was occasionally striped, 

 as one of its most striking features, by horizontal bands from one to three 

 inches thick of fine bone fragments resting close together, and sometimes 

 reduced to the color and consistency of coarse corn meal. 



Subdivision 3. 



Two to four feet thick, dipping downward in the middle and highest against the left wall. 



The most striking and interesting subdivision in the whole deposit, con- 

 spicuously black in color, apparently identical with layer 1, and contrasting 

 strongly with the yellow subdivision 2 above it. It consisted of sandy clay 

 darkly stained by the probable decomposition of vegetal matter, and contained, 

 besides abundant vegetal remains, the bones and teeth of mammals both large 

 and small, and the remains of birds, reptiles and batrachians not elsewhere 

 found. 



Subdivision 4. 



Observed for about ten feet downward. 



This consisted of a coarser zone of sand, clay and stones, contrasting clearly 

 in its general yellow color and lack of vegetal remains with the black subdi- 

 vision 3 above it. The remains of larger mammals, never of reptiles, batra- 

 chians or plants, found in it in place (either in a long and thin yellowish stripe 

 about three to four feet below subdivison 3, or at greater depths, where, owing 

 to the influx of water and continual caving of the banks, their position could 

 not be recorded), were harder than any elsewhere recovered ; those from the 

 greatest depth requiring no treatment with plaster. Over most of the area of 

 the subdivision, its coarse composition of sand and stones showed no sign of 

 animal remains. 



As supplementing the evidence of these lines and zones of deposit testifying to 

 aqueous action, the work of water was further shown by the finding of water-rolled 

 fragments of stone, referred to above, from half an inch to four inches and rarely 

 two feet in diameter at various parts of the exposure, as rolled limestone at B, 4-8 ; 

 B, 9-4 ; B, 3-6 ; B, 2-6, etc. and rolled sandstone at B, 5-7 ; B, 2-6 ; B, 4-10 ; B, 8-6. 

 These testified to the churning of earth and stones in the final deposition of the ' 

 mass, as did also several rolled bits of bones found at B, 3-11, and B, 9-11 ; while 

 at B, 3-11, a remarkable, triangular segment of a tree (see central mass of wood in 

 fig. 6) about three inches thick and fifteen inches in longest diameter, had been cut 

 off its parent stem and rubbed smooth on its edges without destroying the compara- 

 tively soft bark. 



But because Dr. S. G. Dixon had failed to find marine diatoms in the sandy 



