380 



NEGRETTI AND ZAMBBA, HOLBOBN YIADUCT, E.G., 



1978 



FIG. 1978. 



1965 Desiccating Jars, for drying gases by the aid of Chloride 

 of Calcium (fig. 1965) ....... 



1967 Desiccating Tubes, with one bulb, and the end straight 



or bent (fig. 1935) 



1968 Evaporating Dishes (see Dishes). 



1969 Ettling's Gas Transferors, various forms (figs. 1969, 1969*) 



1970 Eudiometer, Volta's, graduated to 200 divisions=2 



Cubic Inches (figs. 1970 and 1970*) . ( 



1971 Eudiometer, Ure's U-shape (fig. 1971), graduated to 



200 divisions=2 Cubic Inches ..... 



1972 Flasks, Florence 



1973 Flasks, White Flint Glass wide and narrow mouthed, 



with round and flat bottoms, from 1-oz. to 1-qt., from 



1974 Flasks, with Side Neck, for Fractional Distillation, 



(fig. 1974) .... 1 pint, 2s. 6d. 2 pints, 



1975 Flasks, very light, mounted with Brass Stop-Cock for 



weighing gases ........ 



1976 Flasks, Graduated to hold 1 Pint Imperial . 



1977 Flasks, Graduated to hold exact quantities Grains, 



Cubic Inches, or Cubic Centimetres .... 











FIGS. 1974, 1978*. 



Flasks of Hard German Glass, capable of resisting extreme and sudden 

 changes of temperature ; flat or round bottoms (figs. 1978 and 1978*) : 



Contents 



Price 



2oz. 



4d. 



4oz. 



5d. 



6oz. 



6d. 



8oz. 



8d. 



12oz. 



10d. 



16oz. 



Is. 3d. 



24oz. 



Is. 6d. 



40oz. 



2s. 



1979 Filter and Funnel Rings of Porcelain (fig. 1979) 4d. and 6d. 



