An unmounted circular-cut diamond weighing 50 carats Size:Large: 7 x 5in Interference would be very Welcome

Description

Interference would be very Welcome

There is a brief note 'Figure 5 at (a b c) is much too large but I have not time to correct or improve it'

'The New Junction

'A longitudinal section of the pons Varolii

An unmounted circular-cut diamond weighing 50 carats Size:Large: 7 x 5in Interference would be very Welcome

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