RAIRD &TATLOCK (LONDON) LTD. 



. 



3265 



3269 



$265 Hydrometers, set of six Twaddell's, Resistance glass, i to 6, about 7 in. long, with trial 

 jar and thermometers, in mahogany case . . 



1266 Hydrometers, specific gravity, six spindles, Resistance glass, about 7 in. long, 700-1000, 

 50 on each spindle, with jar and thermometer in case, as Fig. 3265 . . 



E7 Hydrometers, specific gravity, six spindles, about 7 in. long, 1000-1300, 50 on each 

 spindle, with jar and thermometer in case 



68 Hydrometers, as above, six spindles, about 7 in. long, 1300-1600, 50 on each spindle, 

 with jar and thermometer in case 



269 Hydrometer Set, specific gravity, seven spindles, Resistance glass, about 10 in. long, one 

 each 700-850, 850-1000, 1000-1200, 1200-1400, 1400-1600, 1600-1800, 1800-2000, all 

 in single divisions, in polished mahogany case, with trial jar and thermometer . . 



>270 Hydrometer Set, consisting of one standard hydrometer 1000-1053, one hydrometer jar and 

 thermometer in mahogany case, lined with velvet, as used at the Royal Asernal 



18 6 



18 6 



1 1 



1 1 





 6 



1 15 



1 10 



HYDROMETERS, GLASS, AND OTHER INSTRUMENTS FOR TAKING SPECIFIC 

 GRAVITIES OF VARIOUS LIQUIDS OF BEST BRITISH 

 MANUFACTURE, CAREFULLY MADE AND TESTED. 



271 s Sikes' Hydrometers, glass, round stems, o-ioo, in i best quality 



each 



72 s Sikes' Hydrometers, glass ,, ,, ,, in polished mahogany box with 7 in. 



ivory scale thermometer. With jar and book separate . . . . complete 



Sikes' Hydrometers, o-ioo set of five, 20 in each, divided in -Jths with stout 8 in. ivory 

 thermometer etched on the stem, in polished and screwed mahogany box. With book 

 of tables and trial jar. 



73 s Sikes' Hydrometers, glass, small instruments, about 10 in. long 

 274 s Sikes' Hydrometers, glass, large 13 



75 s Sikes' Hydrometers, glass, 20 above o to o, can be included in above sets, making sets 



of six 



086 

 130 



2 15 

 3 12 6 



extra, per set 12 6 





ICHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



619 



