“Essays on Darwinism” by Thomas Roscoe Rede Stebbing is a book about evolution. The opinions of Mr. Darwin have now been for many years before the world. Observations and experiments, some the most simple, some the most elaborate, notes on natural history, as well from every quarter of the globe as from almost every province of nature, are brought to bear upon the subject without the confusion of thought or embarrassment of style. The language flows easily in its calm, temperate, unegotistical course. There is no disguising of objections, no seeking of opponents. There is an evident search for truth.