159 General Special 



Text Price-List 



page page 



Counting-chamber, Stage for 98 134 



Cover-glasses 141, 142 



for the counting chamber 97 133 



,, thickness of 3, 45 



Cover-glass gauge 95 132 



Cross-line eye-pieces 108 138 



Cross-line micrometer 96, 97 133 



Cylinder-diaphragms 28, 34 122, 124 



Dark-ground diaphragms 29 122 



Defining power of objectives 5 



Depth, Differentiation of 5 



Dermatoscope 74 



Diffraction apparatus 100 134 



Diffraction-plate 100 134 



Dissecting combination-lens 22 121 



Dissecting instruments, Cases of 140 



Dissecting lenses 23 121 



Dissecting stands 78 82 128, 129 



Doublets 25 121 



Drawing apparatus, ABBE'S 88, 89 130 



,, for low magnifications 79 128 



Drawing board 90 130 



Drawing prism 87 130 



Drawing stand 91 130 



Drawing tables 90 130 



Draw-tube 40 



Drum eye-pieces with micrometer 93 131 



index (Index eye-pieces) 108 137 



Drum fitted with PORRO prisms 108 137 



Durability of objectives 8 



EHRLICH'S stops 97 133 



Erecting prism 108 137 



Eye-pieces 



Analyzer 102 135 



Axial-image 103, 104 136 



BERTRAND 105 137 



BRAVAIS 105 136 



Compensating 10 13 118 



Goniometer 95 132 



HUYGENIAN 19 1 20 



Index 108 137 



Projection 118 



micrometer 131 



with cross-lines 108 138 



