120 



Pairs of Objectives for our Binocular Microscopes, (s**i us.) 



Suitable slip-on diaphragms, to be used when it is desired to have an image 

 uniformly sharp to the margin, are supplied with each set of paired ob- 



jectives (ao) 



Price of the Ortlioniorphic Eye-pieces 4 (sec pp. 19 and 72): Marks 7.. 



Code-word: Palmito. 



Eye-pieces, (Seep.i 9 .) 



When ordering HUYGENIAN Eye -piece 2* separately the factory number 

 of the stand should be given. 



Projection Lenses and Micro-Planars, 



(See the new edition of our Catalogue of Photo-micrographic and 

 Projection Apparatus.) 



Further particulars with regard to the Planars, described above as "Micro- 

 Planars" , may be found in the 1901 edition of our Catalogue of Photographic 

 Objectives and Photo-Optical Auxiliary Appliances, pp. 34 41. 



