562 Hevieu's — Natural History Museum Guide. 



the Fayum, Egypt, a beast off which the royal sabre - toothed 

 tiger might have dined well after fair fight. The pictiu'ed skeleton 

 of Phenacodus, like that o^ Sijcenodon, are both in American Museums. 

 Toxodon platensis, a huge herbivore, is represented by a restored 

 reproduction in the gallery (T), Of the Elephants, there is a new 

 figure of Eleplias (Stegodon) gnnesn from the Sewaliks of India ; 

 and near it (p. 64) is figured the four-tusked Tetrahelodon ^ from 

 Sansan, France, the skull and mandible of Palceomastodon headneUi' 

 and of Mceritheriiim hjonsi,"' both from the Eocene of the Fayum, Egypt. 



A new figure is also added of the skeleton of Glyptodon clavipes 

 (case Z, pavilion) from the Pampa formation of Buenos Aires 

 (p. 75), and on plate iv pieces of the skin of the extinct ground- 

 sloth, Gryphotheriictn Listai, nearly as lai"ge as the Mylodon, whose 

 remains, associated with man, were obtained from a cavern near 

 Last Hope Inlet, Patagonia, where these great phytophagous 

 mammals appear to have been kept alive, and fed upon cut grass 

 (also preserved) by these wild people, who afterwards ate them, 

 leaving the bones and skin behind. 



The lower teeth of the existing Monotreme Oruithorhynchns are 

 figured (p. 85) to show their multituberculate crowns, which closely 

 resemble the teeth of some of the earliest Prototherlan mammals 

 found fossil. A figure is added (p. 90) of the restored skull of the 

 great extinct bird Phororachos, also from Patagonia; and on pi. v 

 is given a beautiful figure of the skeleton of the gigantic Moa 

 (Dinornis maximus) from New Zealand, set up in the gallery some 

 years since. Plate vi gives an excellent figure of the long-tailed and 

 toothed fossil hivA, the Archceopteryx, from the Lithographic Stone of 

 Eichstiidt, Bavaria (described and figured by Dr. Henry Woodward 

 in the Intellectual Observer, vol. ii, for 1862). 



In the folding table of stratified rocks the range of each great 

 group of organisms is shown in the stratified series, and the 

 approximate European equivalents of the British rocks are given 

 in parallel columns. 



In a museum the student is more concerned with the succession 

 of life than with the succession of stratified rock-masses ; and 

 a grouping by means of epoch names — that should be used all 

 the world over, if possible — is to be commended. 



The fresh column of Ages, as present day, historic, neolithic, 

 palaeolithic, glacial, would be excellent if all were simple and 

 accepted terms, but such names as ' Priabonian,' ' Artinskian,' 

 ' Pliensbachian,' etc., have been very little used in this country ; 

 it is, however, possible they may be adopted when known and 

 appreciated ; but for the people who buy the Guide they do not 

 seem likely to be of much assistance. 



Another new column added gives, diagrammatically, the relative 

 lengths of Epochs, with the thickness of each, and anyone who likes- 

 may colour this part for himself with great advantage. 



J See Geol. Mag., Dr. C. W. Andrews, on Tctrabelodon, 1903, p. 225. 



2 Article by Dr. C. W. Andrews, see Geol. Mag., March, 1904, p. 113. 



3 See Geol. Mag., Marcli, 1904, p. 110. 



