Till-: BEATING OF TRAN8FOBME] 189 



i> put into a sufficiently large case with free circulation of the 



oil. Any -;u lilice in eftici. iu-y will be but sligbt, since while 



6 7 



/O // 



MIL. : 



tlir li-Mt-lo88 per kilogram t';ictivr 

 weight ; MI ill-rial i> low. 



-i 



i^ liiu'li, tin- ' 



