Show liow biow ero iro TILE FILE G GLASS lass when it is desireddi desi redl redi redin the i laboratory odthe chemist to divide glass glasa tubing accurately into pieces of a certain fied length anth the lowing following ol simple re recipe ci pe will ba b found invaluable having immersed a small smail three cornered file in spirits of turpentine file the tube in the dil sections desired wl with th one of the edged of the file keeping the pint i ot of griet friet ioa iod constantly ivet with the liquid by ureng a im fili we eade of trie trio file in the sa same bame me manner the ragged edges of broken tabes tubes may be rendered perfectly e r fe C 0 y smooth and even glass in all ill shape pl s may b 69 q e basify sty siy bored by using the point of the file arb providing v the point of frictions friction be constantly mois wilh with liquid as above T thi his s plan applies equally well weli in cutting all ali wl oth pr er article artic lei lel iss and is strongly stron etron gly rol roi r iti t rap rapidity d ity and from the fact that it atm aap di all ail ll 11 I 1 danger of f cracking it will wiil willbe bp I 1 found infinitely I 1 in perlor to the old method of simply using ithe file ex |