446 Field A'd/cs. 



beginning- of this note represents a frequent contributor to these 

 pages, and appears at the head of the description of Limax 

 arhorum. The second ilkistration is a well-known locality of 

 L. cinereo-7iiger. An excellent coloured plate showing- the 

 varieties of Z. nuiximus also appears in the part recent!}- issued. 



FIELD NOTES. 



FVNGL 

 Lifting Power of Fungi. — A case of the remarkable lifting; 

 power of fungi occurred at Harrog-ate during- the month of 

 September. I noticed a circular patch of asphalt about nine 

 inches in diameter, situate in a footpath used b}- hundreds of 

 people ever_v day, but just outside the beaten track, to be raised 

 considerably. Upon lifting- off the crust of asphalt I was sur- 

 prised to find the cause to be a cluster of Copriniis atramantarius. 

 Digging- out was a difficult matter ; the stems were from two to 

 four inches long-, the base of each being firmly embedded in 

 the concrete foundation of the path. — John F.'\rr.'\h, F.L.S., 

 Harrogate, 29th September 1903. 



^♦•^ 

 GEOLOGY. 

 BeSemnites at Caistor. — Amongst a collection of belemnites 

 forwarded to Mr. C. G. Danford, of Reig'hton, collected from the 

 Lower Cretaceous bed near Caistor, Lincolnshire, recent!}-, he 

 has recognised four varieties which also occur in the Speeton Clay 

 at Speeton. These are Belemnites laleralis, B. subquadraius, B. 

 Russieiisis, and B. explitnatiis. The identification of these Speeton 

 types of belemnites in Lincolnshire is of interest. — J. W. Stather, 

 Hull, Septen-iber 1903. 



Analysis of Yorkshire Chalk. — The following analysis of 

 a piece of Middle Chalk from Little Weighton has been made 

 for me by Mr. T. Fairley, and may be worthy of record : — 

 ■ Water ... ... ... ... ... o"4i percent. 



\ Org-anic Matter ... ... ^ ... ... o"66 



; Calcium Silicate ... ... ... ... i •64 ,, 



I Oxide of Iron and Alumina .. . ... ... 0-33 ,, 



1 Calcium Carbonate ... ... ... ... 96*27 ,, 



• ' Masfnesium Carbonate ... ... o"65 ,, 



Phosphoi'ie Acid ... ... ... ... 0-04 ,, 



-R. D.wx.'VTT, New Holland. 



Naturalist, 



