OR, A TREATISE ON PILE. 23 



With 11,362 grains it stretched fa of an inch, elasticity entire. 

 " 13,000 " " fa " minus " fa 



" 15,038 " " ft " .1 ^ 



" 16,000 " " || " " l 



" 17,000 " it broke. 

 Fracture very rugged. 

 No. 2. One inch examined, e. d. 



With 11,362 grains it stretched fa of an inch, elasticity entire. 

 " 18,354 " " fa " " " 



" 21,413 " " fa 



" 24,909 " i " " " 



" 28,405 " " ^ " minus fa 



" 31,901 " 1 



" 35,397 " it broke. 



Fracture abrupt on one side, with the filament disrupted and displaced on the other. 

 No. 3. Two experiments, e. d. 

 Experiment No. 1. 



With 21,874 grains it stretched fa of an inch, elasticity entire. 

 " 27,124 " " fa " " " 



" 28,874 " " fa " " " 



" 31,061 " it broke. 

 Experiment No. 2. 



With 23,624 grains it stretched fa of an inch, elasticity entire. 

 " 27,124 " " fa '" " " 



" 28,874 " " fa " " " 



" 34,124 " " fa " " " 



" 35,874 " it broke. 

 No. 4. e. d. 



With 7,866 grains it stretched fa of an inch, elasticity entire. 

 " 11,362 " " fa " " " 



" 14,858 " " fa " " " 



" 18,354 " it broke. 

 No. 6. e. d. 



With 1,070 grains it stretched fa of an inch, elasticity entire. 

 3,518 " " fa " " " 



3,666 " " fa " " " 



" 4,266 " " fa " " " 



" 5,576 " it broke. 



OF MANE HAIRS. The word mane, (Maene Belg.,) designates the long hair which 

 hangs from the neck of certain animals. The French call it "crin;" but they call the 

 hair of the tail by the same name. 

 6 



