Paper, 'On correlation of certain external parts of Palaemon serratus [common prawn]' by Herbert Thompson

Description

Thompson writes: 'In 1890 Professor Weldon published (‘ Roy. Soc. Proc.,’ vol. 47, p. 445) the results of measurements of certain organs of the common shrimp, with a view to establish by accurate data the degree of variation existing in those organs [see PP/15/30]. In a later paper (‘Roy. Soc. Proc.,’ vol. 51, p. 2) he determined, by Mr. Galton’s method there described, the degree of correlation existing between four organs of the same animal [see PP/19/1], and in a recent paper (‘Roy. Soc. Proc.,’ vol. 54, p. 318) similar determinations have been worked out by him for certain organs of Carcinus maenas [see PP/22/22]. Some time ago it was suggested to me by Professor Weldon that I should determine the values of correlated variations in a number of parts of the hard exoskeleton of the common prawn (Palaemon serratus). Accordingly, 1000 adult female prawns, chosen at random, were procured from Plymouth and measured. Twenty-two measurements were made of each prawn, except in the case of two or three measurements which were made on part only of the sample.'

Annotations in pencil and ink. Includes a diagram of the exoskeleton of the Palaemon serratus.

Subject: Zoology / Carcinology

Received 25 January 1894 / 29 January 1894. Read 1 March 1894. Communicated by Walter Frank Raphael Weldon.

A version of this paper was published in volume 55 of the Proceedings of the Royal Society as 'On correlation of certain external parts of Palœmon serratus'.

Reference number

PP/23/15

Earliest possible date

1894

Physical description

Ink and graphite pencil on paper

Page extent

15 pages

Format

Manuscript
Diagram