References/Notes/Attributions:
Source
Latter, O.H. (1902). The eggs of Cuculus canorus. An Inquiry into the dimensions of the cuckoo's egg and the relation of the variations to the size of the eggs of the foster-parent, with notes on coloration, &c. Biometrika i, 164.
References
Tippett, L.H.C. 1931: "The Methods of Statistics". Williams & Norgate, London.