Notes and Comments. , 229 



insoluble in sea-water. It is thought, further, that the 

 evidence shows that the chert is not a metasomatic replacement 

 of the limestone, except to a very limited extent. The 

 existence of large beds composed of siliceous organisms which 

 have not been dissolved is a point that cannot be ignored by 

 advocates of the organic theory. Although the Derbyshire 

 cherts alone have been discussed, it is believed that the same 

 conclusions will be found to apply to other areas,' 



NATURE NOTES. 



Under the above heading ' the Chapel Cuckoo ' writes to 

 The Savile Screamer, a new nature (?) journal, issued by 

 Messrs. A. Brown & Son, as under :■ — ' About this time of the 

 year a ramble on Springhead Road or Love Lane is a great joy 

 to the student of Nature. He (or she) can discover where the 

 Larkspur lurks and the Larks purr. In an adjoining field 

 Chaffinches chaff and the Chiff Chaff fin(i)shes the chaffers, 

 while with care in searching among the tall grass may be found 

 a little green Linnet with a little green in it, and in the 

 adjoining fields the Moles make small molds, which some turn 

 into mountains. Care should be taken by the uninitiated not 

 to confuse a Mole-hill with an Ant-hill, as to repose on the 

 latter is rather dangerous ; so much so, that Ant-hills are 

 called " Resurrections " ; to sit on them is to " rise again." 

 An Ant has antennae, whereas in a Mole there antennse.' 



HOW ' DINOSAURS ' ARE MADE. 



The Transactions of the London and Middlesex Archce- 

 ological Society recently issued are principally devoted to 

 papers dealing with antiquarian subjects relating to London 

 and the immediate vicinity. From some short notes we 

 gather that the ' Enfield Dinosaur,' which was referred to in 

 the London newspapers some little time ago as ' obviously . . . 

 some huge reptile of the dim past,' proved to be the remains 

 of a small horse, fragments of a small ox, and of the antler of 

 a deer, which did not show any peculiarities distinguishing 

 them from existing species. It appears that the newspaper 

 representative compared the bones with a picture in Wells' 

 ' History of the World,' and hence gave the remarkable piece 

 of information to the public ; of such is ' history ' made. • 



LEAD ORES. 



Presumably from a bibliographical point of view the title 

 x)f the pamphlet before us is ' Imperial Institute, Monographs 

 on Mineral Resources, with special reference to the British 

 Empire — Prepared under the direction of the Mineral Re- 

 sources Committee, with the assistance of the Scientific and 

 Technical Staff of the Imperial Institute.' Actually, however, 

 •it should be ' Lead Ores,' by T. C. F. Hall. As works of thia 



it92l July 1 



