BAIRD &TATLOCKL (LONDON) LTD. 



4950 T 

 4951 T 

 4952 T 

 4953 T 



4954 T 

 4955 T 



4956 T 

 4957 T 

 4958 T 

 4959' 

 4960' 



496 1 T 

 4962 T 

 4963 T 

 4964 T 

 4965 T 

 4966 T 



HEATING APPLIANCES FOR REFRAGTOMETER No. 4944. 



I. Heating Trough with current of water at a constant temperature. 



Heating Trough A, with 24 glass beakers of 20 cubic centimetres capacity 

 Heating Trough B 



Thermometer, 15-25 C., divided in j 1 ^ , with fixed metal case and certificate 

 Thermometer, 15-25 C., divided in 1, with a red line at 17.5 C. 



Heating Spiral 



Cistern A of the Water-pressure Regulator 



II. Tempering Bath (available without a continuous flow of water) 



Enamelled Pan, with felt jacket and overflow joint, I metre rubber tubing, and stopcock 



Filler to above 



Carrier for the Refractometer and Mirror 



Umbrella Frame for 12 beakers, also 24 glass beakers 20 cubic centimetres capacity 



Thermometers, Nos. 4952-4953 



SET B. 



Refractometer with Auxiliary Prism See Figs. 4944-4947 

 Enamelled Pan 

 Filler .... 

 Carrier 



Umbrella Frame 

 Thermometers, Nos. 4952-4953 



4967 



4967 Refractometer, Thornoe's, for analysing beer, with Hallwach's differential prism, 

 complete, including illuminating lens on stand, magnifying glass for taking readings, 

 and calculation tables, in case 



A. One gas sodium burner, with one platinum ring 



B. Two specific gravity hydrometers (one from i.oioo to 1.0330, the other from 1.0320 



to 1.0560) 



C. One hydrometer jar 



D. One thermometer, from 10-32 C., divided in tenths of degrees 



1 10 

 16 

 100 

 036 



3 1 

 070 



15 6 

 050 

 143 

 166 

 136 



13 2 C 

 15 6 

 050 

 1 4 3 

 166 

 1 3 6 



17 16 9 





14 

 17 



2 10 

 4 

 7 



17 19 



CROSS STREET HATTON GARDE1ST, E-C 



896 



