45, CORNHILL, E.G., AND 122, EEGENT STREET, W., LONDON. 



181 



FIG. 444. 



444 Negretti and Zambra' s Patent Saccharometers, as supplied to the Excise 

 Department of the Inland Revenue. 



The changes in the scale divisions of Saccharometers, required by the New 

 Beer Act, having been completed, Messrs. Negretti and Zanibra are now prepared 

 to supply their Patent Glass Saccharometers, and also a new form of Brass 

 instrument, made in accordance with the models supplied by them to the Excise 

 Department of Inland Revenue. Negretti and Zambra having been favoured with 

 instructions to furnish designs for special instruments, have introduced those 

 mentioned above, each kind being of Standard accuracy, and moderate in price. 



Fig. 444 consists of two Patent Standard Glass Saccharometers, with 

 strengthening rods, one with divided scale ranging from 1,000 to 1,050 Specific 

 Gravity; the other from 1,050 to 1,100 Specific Gravity; also a brass scale 

 Thermometer. The three instruments are fitted in a strong, well-made Mahogany 

 Box as supplied to the Excise Price 220 



A set of three Patent Glass Saccharometers, the scales ranging from 995 to 

 1,150, also a Brass scale Thermometer. The four instruments fitted as above 2 15 



Glass Saccharometers being much more accurate than those made of metal, 

 Negretti and Zambra strongly recommend their use, especially as the risk of 

 breakage is now much diminished by the introduction of their Patent arrangement 

 for strengthening the weak parts of the instruments. 



FIG. 445. 



In most of the large breweries the Standard instruments used are invariably 

 Glass ones, as greater reliance can be placed upon them, more especially when 

 indicating the fractional parts of gravity. 



Fig. 445 is a Gilt Metal Saccharometer, the scale on one side of its stem ranging 

 from 995 to 1,025 Specific Gravity ; and on the opposite side, by the addition of a 



