CONTENTS 
{All Eights reserved) 
PAOE 
I. A Biometrical Study of Conjugation in Paramecium. (With eleven 
Diagrams in the text.) By Raymond Pearl, Ph.D. . . . 213 
II. The Anthropometric Characteristics of the Inina|es of Asylum.s in 
Scotland. (With eleven Diagrams and eight Maps in the text 
and three Plates of Maps.) By J. F. Tocher .... 298 
III. On the Error of Counting with a Haeniacytometer. By Student. 
(With two Diagrams in the text.) ...... 351 
Miscellanea, (i) On the Distribution of Severity of Attack in Cases of 
Smallpox. By F. M.^" Turner, M.D. . . . . 361 
(ii) Remarks on Dr Turner's Note. By Karl Pearson, F.R.S. .363 
Supplement to Vol. "V". Anthropometric Survey of the Inmates of Asylums 
in Scotland. (With Maps.) By J. F. Tocher. Issued by permis- 
sion of the Henderson Trustees . . . . . 1 — 96 
Biometriha will appear about four times a year. A volume containing 
about 400 pages, with plates and tables, will be issued annually. 
Papers for publication should be sent to Professor Karl Pearson, Uni- 
versity College, London. It is verj^ desirable that a copy of all measurements 
made, not necessarily for publication' should accompany each paper. In all cases 
the papers themselves should contain not only the calculated constants, but the 
distributions from which they have been deduced. Diagrams and drawings should 
be sent in a state suitable for direct photographic reproduction, and if on decimal 
paper it should be blue ruled, and the lettering only pencilled. 
Books and offprints for notice in the bibliography should be sent to Prof. Pear- 
son, and, when a second copy is available, to Dr Raymond Pearl, Zoological 
Department, University of Pennsylvania, Pa., U.S. 
Papers will be accepted in German, French or Italian. In the first 
case the manuscript shoul4 be in Roman not German characters. 
Contributors receive 25 copies of their papers free. Twenty-five or fifty 
additional copies may be had on payment of 3/6 or 6/- respectively per sheet of 
eight pages: these should be ordered when the final proof is returned. 
All communications, other than those relating to contributions or publications 
for - review, should be addressed to the University Press, Cambridge. 
The subscription price, payable in advance, is 80«. net per volume (post free); 
single numbers IO5. net. Volumes I, II, III and IV (1902 — 6) complete, 3O5. net 
per volume. Bound in Buckram 34/6 net per volume. Subscriptions may be 
sent to C. F. Clay, Manager, Cambridge University Press Warehouse, Fetter 
Lane, London, E.C„ either direct or through any bookseller. • 
