Frederick H. Evans n.d. Microscopes slide of "Sponge Spicules" (left), "Tooth of Shark" (center) and "Pulex Iritans (sic) - Flea" (right) with signatures
Microscope slides Private collection of Professor Brian Stevenson, Ph.D. Three microscope slides bearing labels with Frederick Evans' signature. The left slide, of a flea, also carries a descriptive label in the same hand, and was presumably made by Evans. The right slide, a papered arrangement of sponge spicules, bears a specimen label with the handwriting of professional slide-maker John Barnett. It is not known whether Evans bought the slide through G. Rogers, or if Rogers disposed of it after Evans had owned the slide. The maker of the center slide is not known.