fcc. PRESIDENT S ADDRESS. 



Mr. A. Jukes-Browne, which appears in our last volume of 

 " Proceedings." An investigation of the extraordinary crater at 

 Canyon Diablo, in Arizona, was lately made, which tends to 

 show that it was not caused by a volcano, all the observed 

 phenomena being of a superficial nature. The rocks to a depth 

 of 800 feet have been shattered, and indicate the presence of 

 great heat. At the same time no trace has been found of the 

 gigantic meteorite which is supposed by its fall to have caused 

 the crater, but it is thought that it may have been dissipated by 

 the intense heat caused by the blow. The price of tin is much 

 higher than formerly, and it is, therefore, satisfactory that the 

 output of this useful metal in West Africa promises to be 

 considerable. To German East Africa a German expedition is 

 to be sent to investigate further the huge animal remains recently 

 found there in considerable numbers, resembling the finds in 

 North America. All the bones hitherto brought back belong to 

 a large herbivorous Dinosaur, nearly 50 feet in length, but no 

 skull has yet been found. The animal is something like the 

 Diplodocus, the huge saurian of whose skeleton there is a cast in 

 the Natural History Museum, and has been named Giganlosaunts. 

 The ends of the bones frequently appear above the soil, and 

 many lie in their natural positions with regard to each other. 

 The attitude of the Diplodoct/s as represented in the Natural 

 History Museum has been questioned, and it is suggested that it 

 may have crawled and swum like a crocodile and fed upon 

 water plants. An interesting note on the size of the mammoth 

 mentions three species, with heights as follows \-Elephas 

 primigenius, the commonest, found in North America, Siberia, 

 and Europe, height about pft. 6in. ; E. Colombi, uft. ; and 

 E. itnperafor, i3ft. 6in., the tallest of any known species of 

 elephant. These two last are from America. The average 

 height of the living Indian elephant is about pft., though it 

 sometimes reaches considerably more. The American mastodon 

 was about the same height. The greater part of the skeleton of 

 a mammoth was lately found in Sussex below high-water mark in 

 a bed of black clay, from which the shingle had been swept by 



