li 



Relations of Living and Extinct Faunas as elucidating the Past 

 Changes of the Earth's Surface,' two vols., 8vo, London, 187G. 



The distribution of the earth into primary geographical regions, 

 proposed by Mr. Sclater, has been partially adopted — (1) the 

 Palaearctic, comprising the whole of Europe, North Africa, and 

 the whole of Asia, except the Indian and Siamese Peninsulas ; 

 (2) the Nearctic Region, comprising the whole of North America, 

 except Mexico and the Nicaraguan Isthmus; (3) the Neotropical 

 Region, or the whole of South America, and with Mexico and the 

 Isthmus of Nicaragua ; (4) the Ethiopic, or the whole of Africa 

 (except the northern part) and Arabia ; (5) the Oriental Region, 

 comprising India, Burmah, Siam, Sumatra, Java, Borneo, and 

 the adjacent islands ; and (6) the Australian Region, comprising 

 New Holland, New Zealand, and the other islands east of 

 Borneo. 



The causes regulating the geographical distribution of animals, 

 fossil and recent, are discussed, and the animals characteristic 

 of each of these regions are rapidly passed under review, the 

 greater part of the second volume being occupied by a systematic 

 sketch of the chief families of land animals in their geographical 

 relations. In this part of the work insects occupy only thirty- 

 four pages, being devoted to the distribution of the genera of 

 Diurnal Lepidoptera (comprising nearly 8000 species), and a few 

 of the families of beetles. 



The Distribution of Insects in New Hampshire (forming a 

 chapter from the first volume of the Report upon the Geology of 

 that State), by S. H. Scudder, affords much material for study. 

 Probably no State in the Union presents so striking a variety in 

 animal life as New Hampshire, its northern and southern portions 

 belonging to distinct Continental forms, part resembling the 

 productions of Labrador and Greenhill, whilst at a difference of 

 only sixty miles animals flourish characteristic of sub -tropical 

 climates. A considerable portion of the memoir is occupied 

 with the distribution of the different species of butterflies, and a 

 portion with the different Orthoptera, the habits of the species of 

 this order being given in great detail, together with the musical 

 notes of each species. 



The butterflies and Orthoptera collected by Mr. Dawson along 

 the boundary line between British America and the United States, 

 have also been described by Mr. Scudder. 



