Microscope and oxy-hydrogen lamp projector discrimination 'On the bank of an

'On the bank of an African river'

on the site of the new Coal Exchange

View of the flotilla on the Serpentine

15 May 1900'

Microscope and oxy-hydrogen lamp projector discrimination 'On the bank of anImage of a flea being projected by 'Palmer's improved portable oxy hydrogen apparatus and microscope with prepared objects, complete.' The equipment is mounted on a wheeled trolley in front of a screen, gas being piped from storage bellows to the projector for illumination of the microscope slides. What appears to be a safety water pump is also shown, with a pointing stick. The complete apparatus sold for 35. Figure 274 (p. 61) from Palmer's new