Great Northern Railway Engineer's Office roll of printed graphs, "Specimen of results obtained with the "Hallade" Register to assist in interpreting indications given by the apparatus, and showing the results of the proper treatment of curves," translated from French. Specimen of results obtained with the "Hallade" Register
Two pads of graph forms for the North American Growth and Development Longitudinal Standards, 'Height, distance and velocity-Girls', by J Tanner and P.S.W Davies, first published 1985. North American Growth and Development chart, 1985 1985
Set of 10 weight charts, age of baby (up to 70 weeks) plotted aginst weight (up to 27 pounds) Set of 10 infant weight charts circa 1930
