Some of My Favourite Slides Favourite Slides A peep at a handful of slides from the second half of the 19th.
Every microscopist has favourite slides, though probably cherished for different reasons.
The slides I illustrate here are a small selection mounted between approximately 1850-1900 and in most cases their condition is quite extraordinary. Each slide has been scanned in a document scanner to show its general form, followed by images of its contents using a 'scope and digicam, together with comments. This is probably the most frequently observed of all slides in my collection, and makes a good general test slide when comparing illumination techniques, resolution and flatness of field etc. In 'Snow Flake' form. The substage diaphragm was reduced to enhance diffraction colours.