BAIRD &. WLOCK (LOM)ON) LTD. 



465 



4.,s 



>5 S Microscope Lamp, adapted to take a small metallic filament electric lamp, with he.i\ \ 



base, and universally adjustable joint, parabolic mirror and lamp .. .. i-.u-h 110 



j6 T Swift's Nelson -Dallinger Microscope Lamp, with improved mechanical arrangements 

 for rapidly and accurately adjusting the flame vertically and horizontally. The lamp 

 slides on a square pillar, and is clamped to about the required height ; e\a< t adjustment 

 is then made, vertically by rack and transversely by a quick-acting screw. A HeiM-heliaii 

 condenser is fitted to the base of the burner, with movements which permit it to be pla 

 in any position and inclination, provided with semicircular groove in front for receiving 

 coloured screens. Either the flat or edge of the flame may be used. Large enamelled 

 oil container and metal chimney with heat conductor . . . . r.i' h 14 4 



I7 T Ditto, without the mechanical, horizontal, and vertical adjustments .. .. .. 2 10 



I8 T Swift's Microscope Lamp, for oil, with peaked shade .. 15 



CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS 



