Testimony of the Brass Microscope at the Clinical Recovery...

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2026-06-04 17:37:11 -

Testimony of the Brass Microscope at the Clinical Recovery Institute, St. Ives, Cornwall

I was manufactured in the workshops of Powell and Lealand on Euston Road, London, in the year 1873. My stand is of polished brass, my lenses of crown glass ground to a tolerance of one ten-thousandth of an inch, my stage fitted with a mechanical substage condenser that was, at the time of my construction, the most advanced optical assembly in the British Empire. I cost forty-seven pounds, which...

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