993.214.1: Haemacytometer, 1901-1950

Additional Images

993.214.1: Haemacytometer.
Image No. 2991 ; Photographer: Helen Kingsley

Object Description

Haemacytometer in red leather case consisting of two graduated mixing pipettes for both red and white corpuscles, two tubes for pipettes with mouth-piece and a Thoma [Hawksley] counting chamber. The Thoma's counting chamber has a cell with a uniform depth of 0.1 m/m; the bottom of the cell is ruled into 400 squares, each having an area of 1/400th of a square millimeter. 'BLUTKÖRPERZÄHLAPPARAT' and manufacturer's name 'CARL ZEISS JENA' embossed into lid in gold coloured print. Case dimensions given.

Object Classification

Accession Number: 993.214.1
Collection: Diagnostic, Clinical
Date: 1901-1950

Object Dimensions

  • Length: 18.3 cm
  • Height: 2.5 cm
  • Width: 10.2 cm

Object Parts

  • a) Lined case
  • b) Counting chamber
  • c) Mixing pipette
  • d) Mixing pipette
  • e) Tube and mouth-piece
  • f) Tube and mouth-piece

Object Materials

  • copper alloy,
  • glass,
  • gold print,
  • leather,
  • plastic,
  • rubber,
  • velvet,
  • wood,
  • bone

Acquisition Detail

  • Manufacturer: Carl Zeiss Jena
  • Owner: Dr. Donald H. Paterson
  • History of Use: Dr. Donald Paterson [1890-1968] a pioneer and leader in paediatrics. In 1946 he founded the Health Centre for Children in Vancouver and in 1954 was a founding member of the Board of the B.C. Association for Retarded Children.