The Initial Effects of Ionizing Radiations on Cells

divides into the Lorisiform lemurs and the Lemuriform lemurs. There is some justification for this, yet the unique features of the Malagasy (Lemuriform) lemurs does argue that the nocturnal lorises of Asia and Africa are better kept in a separate category. But here we go arguing terminology, a deplorably bad habit which Sir Wilfred has noted is a characteristic trait of students of the Primates. He includes the tree shrew among the Primates, something which relatively few zoologists have wanted to do. Yet, as he shows, they clearly have affinities with the Lemuriformes and are closer than any Insectivora to a typical lower Primates. The evidence for primate evolution is discussed under a number of anatomical categories-dentition, skull, limbs, brain, special senses, digestive system, and reproductive system. He concludes with a concise summary of the salient points of the preceding chapters. This reviewer has never seen a better book on the Primates and recommends it highly. The ossified thinking and pedantic ineptitude of most of academic and amateur zoology in Europe and America has made a mess of phylogeny and taxonomy of the Primates. This book is a splendid prolegomenon for an eventual revision of our own mammalian Order.