Contents 
V 
(vii) Note on Partial Leucosis in a Hen. By W. Coles Finch . . 234 
(viii) Dr Galloway's "Canary Breeding." By C. B. Davenport 
(ix) Canary Breeding, A Rejoinder to C. B. Davenport. By A. Rudolf 
Galloway 
(x) Inheritance in Canaries, A Study in Mendelism. By David Heron 
(xi) Biometric Notes, (i) An Abac to determine the Probable Errors of 
Correlation Coefificients. By David Heron 
(ii) Ou the Probable Error of a Partial Coi-relati(Hi Coefficient. By 
David Heron 
(xii) On the value of the Teachers' Opinion of the General Intelligence 
of School Children. Compiled from the Tables and Reductions of 
H. Gertrude Jones. By Karl Pearson ,542 
(xiii) Note on the Separate Inheritance of Quantity and Quality in Cows' 
Milk. By Karl Pearson 548 
Book Notes and Bibliography 413 
401 
403 
410 
411 
Plates. 
Parts I. and II. 
Plate I. Canary and Canary Hybrids 
Plate II. Wild Sports 
Plate III. Canary Hybrids .... 
Plate IV. Canary Varieties .... 
Plate V. Variegated Buff Dutch Frill Canary 
Pigeon ..... 
and Trumpeter 
to face p. 4i2 
4>2 
42 
42 
42 
Part III. 
Plate I. Sections of Retina in 4th and 10th week Embryos . „ 242 
Plate II. Sections of Retina and Iris in albino and normal Children „ 242 
