BAIRD &TATLOCK (LONDON) LTD. 



3846-3847 



3846 Science Lantern, larger pattern, for vertical and horizontal projections with hand-fed arc 

 lamp, rack and pinion adjustment for carbons to raise or lower and screw to work carbons 

 from right to left. Price, with suitable resistance for currents up to 100 volts, fitted 

 with portable case with leather strap 



3847 s Science Lantern, as above, with resistance suitable for currents up to 200 volts 



This lantern is fitted with polished mahogany body with panelled brass shuttered doors, and is lined inside 

 with Russian iron asbestos covered. It is fitted with 5-in. condensers and double achromatic lens with rack 

 and pinion adjustment. 



The objective front is supported by double telescopic draw tubes, and is worked by means of triple quick- 

 acting screw which allows of the objective being quickly brought in focus. 



When ordering, please state voltage of current available and whether continuous or alternating. 



19 10 

 20 10 



384S 



3849 



3848 Specific Gravity Bottles, accurately adjusted with drilled stoppers. 



10 25 



Or 100 250 



Price .. .. .. .. 1/3 1/9 



14/- 18/- 



50 



500 



2/3 

 25/- 



100 grammes. 

 1,000 grains. 



2/9 each. 

 30/- per doz. 



3849 Specific Gravity Bottles, as No. 3848, accurately adjusted with drilled stoppers, with 

 'brass counterpoise in japanned tin case. 



10 25 50 100 grammes. 



Or 100 250 500 1,000 grains. 



Price .. .. .. .. 3/- 3/3 4/- 4/6 each. 



CROSS STREET HATTOTST GARDEN, E-C 



