30 JULY 1921, page 23

Tii.b1 Law Of Births And Deaths.*

IT is well known that the birth-rate, like the death-rate, II falling in civilized countries. Mr. Pell in a spirited essay would attribute the decline to a natural law. He does......

Dogs, Birds, And Others.*

Mn. H. J. Rostra:num has done a great service to lovers of animals in editing this book. We could not have wished to have the letters about animals which Mr. Massingham has......