IOI 



Specification 4. 

 Achromatic Objectives: 



a 2 a* AA C DD F 



12. 40. 30. 30. 50. 75. . . . Mk. 237. 



Codeword 



PI D* J (Water Immersions) 



20. 75. no. 205. 



I " 



(Homogeneous Immersion) 125. 



HUYGENIAN Oculars : 



i. 2. 4. 5 . . . 24. 



3 (Micrometer Ocular No. 120) 18. ,, - _ 



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



Revolving Nose-piece for 4 Objectives, No. 50 25. 



Drawing Apparatus No. in 60. 



Stage Micrometer No. 118 10. 



Counting Chamber No. 142 15. n-ieo 



Outfit completed by adding: 



a) Stand IA No. 5605 ,, 325. 



Polarising Apparatus No. 170, and 



Selenite Film No. 180 44 ._ 



Packing ^ 3jl .. 372-- Mk. 1094.60 Piariegas 



or * 



b) Stand HID No. 6405 290. 



Polarising Apparatus No. 170, and 



Selenite Film No. 180 44. 



Packing __ 3.- ^ 33; ,_ 1059.60 Picadinha 



or 



c) Stand IV D No. 7105 260. 



Polarising Apparatus No. 170, and 



Selenite Film No. 180 44. 



Packing 1 307 ,, 1029.50 Picamare 



or 



d) Stand IIIC No. 6305 250. 



Packin S_^ 1^ 253 ._ 975.60 Piearaza 



or 



e) Stand IV C No. 7005 225. 



Packmg 1; ^H 228. 950.50 Picaresque 



or 



f) Stand IV B No. 6905 210. 



Packing_,, 3.- 2I _ 



Qazt 



-^i 

 f Or THf 



I UNIVERSITY 1 

 \ or J 



X. f>.. ...V S 



