Personal and Sckntijic News. 215 
'this that they grew where found, for the pieces of carbonized wood found 
in the same deposits were evidently drifted in, as this drift wood is found 
at various depths all over the south side of the island. 
This little isle by the sea still remains a geological puzzle. Stratified 
])eds are found 360 feet above the level of the ocean as well as 500 feet be- 
low it. At Calvary Cemetery the rock was struck at a depth of 183 feet in 
the glaciated part of the island. In the unglaciated part, as at VToodhaven 
not more than three miles south of the former place, the rock is eroded to 
tlie extent of over five hundred feet. 
The following gives the results of the boring at Woodhaven ; 
1 to 113 feet. Reddish sand and gravel. 
113 " 130 " Sand and coarse gravel. 
120 " 133 " Pepper and salt sand. 
133 •' 144 " Keddish sand. 
144 " 313 '• Reddish sand and gravel. 
213 •' 318 " Tough whitish clay. 
318 " 346 " Reddish sand. 
.246 " 398 " Clay containing pebbles. 
298 " 315 " Light bluish clay. 
315 " 358 " Clay with rootlets. 
-358 " 375 " Fine sand and clay. 
375 " 385 " Clay, wood and vegetable matter. 
385 " 417 " Grayish sand. 
417 " 419 " Light bluish clay. 
419 " 430 " Sandy clay. 
430 " 433 " Bluish clay. 
438 " 436 " White clay. 
436 " 443 " Light gray sand. 
443 " 456 " Dark gray sand. 
456 " 460 " Coarse white beach sand. 
460 " 475 " Clay, pebbles and fine beach sand intercalated. 
475 " 480 " Clean gravel. 
480 " 500 " Sand and gravel. 
500 " 510 " Quartz gravel and sand. 
510 " 515 " Grayish sand. 
515 " 518 " Clay or marl ? 
518 " 540 " Dark clay. 
540 " 556 to rock. Gray, micaceous sand probably ground out of the 
underlying gneiss rock . John Bryson. 
1309 Baxter Ave., Louisville, Kentucky. 
PERSONAL AND SCIENTIFIC NEWS. 
At the "DRAJfE Colliery," Clearfield Cou2^ty, Pennsyl- 
vania, electric motors are in use for operating coal-cutters. 
Electricity seems to possess many advantages over compressed 
^air as a means of applying power in coal mines. The machinery 
