OF SPECIFIC GEAVITY INSTRUMENTS. 



213 



FIG. 2508. 



FIG. 2509. 



2496. SMALL POCKET SYKES'S HYDBOMETEB, best double gilt, with ivory thermo- 



meter, enamelled tube, book of table, and trial glass, complete 3 15 



N.B. When either of the above are required for warm climates, the book of tables is made 

 up to 100 of temperature, and the thermometer to proportionate higher range at 7s. 6d. extra. 



2497. SYKES'S HYDBOMETEB, glass, with ivory or paper scales expressly arranged to 



suit the tables used by her Majesty's Excise, with thermometer, trial jar, and 

 book of tables, in case, complete .... 1 10 



*#* This instrument being anti-corrosive and invariable in its adjustment, is much used aa 

 a standard of comparison with which to test brass instruments. 



2498. Hydrometer, glass, for spirit, showing the per centage of proof spirit from 70 



above to 40 per cent, under proof, in tin case, with tables . 5 6 



2499. DITTO, the same, with tables of heat up to 100 for hot climates 060 



2500. BBEWEB'S SACCHABOMETEB, best electro-gilt, with one weight, showing to 521bs. 



per barrel, with rule, tables, instructions. Thermometer, etc., in case, with 

 lock and key . . . . . . . 440 



2502. DITTO, DITTO, electro-gilt, of plainer make, without rule * 330 



2503. BICHABDSON'S ditto, ditto, to 601bs. . ' . . . 3 10 



2504. Allen's Saccharometer, best gilt, chiefly used in Scotch breweries, with slide 



rule, trial jar, etc., in case complete .... 4 10 



2505. SACCHABOMETEB, glass, for brewers, with thermometer, in mahagony case, also 



glass jar, improved tables of gravity, and temperature, etc. (fig. 2505), p. 215 



110 



2506. SACCHABOMETEB, glass, in round case, with tables of heat, as above 056 



2507. SACCHABOMETEB, glass, for British wine making, as described in Eobert's 



"Wine Maker's Guide" . * :, . . . 050 



Corndrometer or Corn Balance. A portable and convenient instrument for 

 showing the real weight per bushel, etc., of corn, as wheat, oats, barley, etc., from the 

 weight of a small quantity, thus, the measure A being filled with corn and attached to the 

 beam B, the sliding weight is passed along till the corn is balanced, and the exact weight 

 or value is thus shown. The sizes quoted are imperial English measures, but foreign 

 ones can be made, if preferred, at a slight extra cost. 



2508. COBNDEOMETEE, in mahogany case, complete (fig. 2508), 1 pint, 3 5s. ; % pint, 



2 15s. ; i pint, 2 5s. ; pint . . . 220 



