Beck, Conrad, 1864- · London, R. & J. Beck, Ltd. · leaf 106
Fig. 96.—No. 3221, Portable Standard London Microscope, withrack and pinion, and centring substage, mechanical stage, triple nose-piece, and condenser. 102 … Fig. 97. No. 3216, Standard London Microscope, with large body, circularstage, and complete substage adjustments. Ko. 3217, Hack and pinion focussing and double^extension draw-tube. 103 104 , THE MICROSCOPE The Standard London Microscope with CircularRotating Centring Stage This instrument is made…
Microscopy
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