xvi CONTENTS. 



PAET III. 



MANIPULATION. 

 CHAPTER I. 



I'ncc 



Diamond for cutting glass - 259 



Writing diamonds - 261 



CHAPTER II. 



On CwTTiifG Glass 262 



Glass - ib. 



Cutting-board - ib. 



Process of cutting 263 



Edging the slides 264 



On cutting thin glass for covers 265 



To cut circular and oval covers - - 266 



CHAPTER III. 



Method of Ckmekting Cjells - - 270 



Method of cementing cells without heat - ib. 



Cementing cells by heat - 271 



To cement cells with Canada balsam 273 



CHAPTER IV. 



Oir Cements - - . . 274. 



Japanners' gold-size - - ib. 



Sealing-wax varnish - ih. 



Asphaltum 275 



Canada balsam - ib. 



Marine-glue - - ib. 



Electrical cement 276 



Diamond cement - ib. 



Suggitt's Hquid jet 277 



Coachmakers' varnish ib. 



Black japan - - ib. 



