THE NATURALIST 



FOR 1905. 



NOTES AND COMMENTS. 



WEARDALE NATURALISTS. 



The Weardale Naturalists' Field Club and their editor, 

 Mr. W. M. Eg-glestone, are to be congratulated on their 

 * Transactions,' two parts of which have been issued, together 



Calcareous Deposit from Middridge Coal Mine. 



comprising 250 pages. Whilst some of the notes do not bear 

 much upon the district, the greater part have reference to the 

 natural history, geology, or antiquities of Weardale and its 

 vicinity. The ' Transactions ' are printed upon good paper, and 

 have many illustrations, two of which are reproduced herewith. 

 The first is a photograph of a curious deposit, described by 

 Mr. T. Teasdale as a 'Bird-nest stalagmite.' It is of quite recent 

 origin, and consists of a number of calcareous pebbles — each 

 having a nucleus of silica, in a hollow or nest. Such deposits 

 occur in some of the Durham coal mines. The second illustration 



