97 



Complete Microscopes. 



As a convenient guide to the selection of stands and their optical equipment, 

 together with the requisite accessory apparatus, we append a number of com- 

 binations suitable for a great variety of purposes. It is not, however, our inten- 

 tion to place the least restriction on the free choice of our customers. 



In ordering a set corresponding to one of the specifications it will be 

 sufficient to quote either the respective number and the total cost or the 

 codeword. 



A. Complete Microscope Outfits, comprising all the more important 

 Accessory Apparatus. 



Specification 1. 

 Apochromatic Objectives: 



1 6 mm 8 mm 4 mm 



0.30 num. Ap. 0.65 num. Ap. 0.95 num. Ap. 



80. 100. 140. . Mk. 320. 



2.5 mm (Water Immersion) 250. 



1.25 num. Ap. 



2 mm 3 mm (Homog. Immers.) 



1.30 num. Ap. 1.40 num. Ap. 



300. 400. , 700. 





 Compensating Oculars : 



24 8 12 18 



2O. 20. 30. 30. 25. 125. - 



6 (Micrometer Ocular, No. 122) ,, 31. 



Achromatic Objectives: 



ao a 2 a* aa B 



12. 12. 40. 27. 30. 121. 



PI -D* (Water Immersions) 



20. 75. 95. 



HUYGENIAN Oculars: 



i, 4. 5 , 18. 



2 with cross lines and adjustable eye-lens ... 17. 



3 (Micrometer Ocular, No. 120) 18. 



Mk. 1695. 



Glass Cell for the Plankton-searcher No. 2030 . ,, 3.50 



Centring Achromatic Condenser No. 29 .. 75. 



ENGELMANN'S Micro-spectral Objective No. 34 160. 



Revolving Vulcanite Stage No. 45 25. 



263.50 



Carried Forward Mk. 1958.50 



ef O" ct 



a.zv >bci:o, cTcna, 



