321 
traversers, and the inventor even proposes to apply it to the 
performance of various kinds of work on board ships. 
In reply to some questions by Mr. Liddle, of Lindholme, 
Mr. Broadrick said the hydrostatic crane was no more than 
the multiplying power of the engine. 
Mr. Liddle said he thought that it might be made available, 
and would save much wear and tear of engines, on the works 
on the moors. 
Mr. Broadtuck said in that case it might be useful, 
because when the engine was not at work they might be filling 
the accumulator. They would in that case diminish the first 
cost of the engine, but they would have the accumulator to 
pay for ; and although that was a simple thing in itself, yet 
it was not economical unless there was a large use of cranes. 
It would reduce the cost of cranage in some instances to one- 
half. 
ON THE DISCOVERY OF HIPPOPOTAMIC AND OTHER RE- 
MAINS IN THE NEIGHBOURHOOD OF LEEDS. BY MR. 
H. DENNY, A.L.S., &C, LEEDS. 
The superficial deposits which are so prominent in every 
quarter of the globe, — on the vast plains of South America, 
the swamps of North America, the flats and gorges of 
New Zealand and Australia, the ridges of the Himalayas, 
the shores of Siberia, the Steppes of Russia, and, lastly, 
on extensive districts in the British Isles, — must of neces- 
sity be invested with great interest, from the circumstance 
that such accumulations are the relics of the last physical 
changes which have taken place on the surface of the 
earth, and are, therefore, (geologically speaking,) of com- 
paratively modern date, and, in some instances, probably, 
approaching to, if not during, historic times. These accu- 
