6 



U. S. COAST AND GEODETIC SURVEY 



One length soft glass tubing, about Y^ inch inside diameter. 



Two feet rubber tubing, black, pure gum, heavy wall, V^ inch inside diameter. 



One burette, 50 c. c, plain (for use with pinch cock). 



One plain rubber stopper to fit top of burette. 



One burette attachment, for refilling from reservoir, consisting of glass tip, 

 T-tube, rubber connections, and 2 pinch cocks. 



One glass tube, elbow shape, about % inch inside diameter, IY2 inches 

 straight tubing on each leg. This can be made on board by the use of a blow 

 torch, if desired. 



Fig. 3. — Chemical titration outfit 



Two beakers, pyrex glass, 150 c. c. 



One evaporating dish, 250 c. c. 



One washing bottle, pyrex, complete, 500 c. c. 



One glass stirring rod. 



One transfer pipette, 10 c. c. 



One transfer pipette, 1 c. c. 



One bottle, tincture, 4 ounce, with glass stopper. 



One volumetric flask, 2 liters. 



