BAIRD &.TATLOCK (LONDON) LTD. 



5792 



5792 T Spectrometer, with circle of brass 6 in. diameter, divided to half-degrees, reading to 

 one minute by means of a vernier, movable prism table, with vernier divided to half- 

 degrees, collimator, and observing telescope of I in. aperture and 9 in. focal length ; the 

 former is provided with adjustable slit, micrometer screw, and comparison prism ; the 

 observing telescope has a micrometer in addition to rack and pinion movement and 

 illuminating eyepiece 



5793 T Spectrometer, as above, but smaller in size, with two prisms 



12 10 

 7 



5794 1 Spectroscope, by Schmidt & Hasnsch, direct-vision, Hoffmann's pattern, large model, 

 with micrometer screw-measuring arrangement, prism slit, one each oculars Nos. 78 

 and QB, tube with millimetre scale, illuminating mirror, small incandescent lamp, etc. . . 19 10 



I CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS. 



