including: a Fuchs-Rosenthal haemacytometer, London, late 19^th/early 20^th Century, with a glass counting chamber inscribed FUCHS ROSENTHAL Depth 0.2mm 1/16mm² B.S. 748 HAWKSLEY LONDON, original case missing – 7.5cm. (length); a Thoma-type haemacytometer, German or French, late 19^th Century/early 20^th Century, stamped on case Blutkörpersählappart nach Thoma., possibly manufactured by Carl Zeiss, with two graduated glass pipettes one marked on reverse Carl Zeiss, France 4114, a further graduated glass rod, a rubber tube with smaller pipette/mouth, a cross-line micrometer on a glass slide marked 0.100 mm. / 1/400 qmm and Thomas, in morocco red, plush-lined case – 29.8cm. x 2.5cm. x 9.4cm.