50 Field Notes. 



Eastward of these Carboniferous g"ravels the current bedding" 

 becomes much less marked, and at the same time the percentage 

 of Trias-derived stones gradually increases. The average size 

 of the stones also decreases, but larg-e boulders of Grit, Chert, 

 and Gannister are frequent, some of the latter being- almost a 

 ton in weight. 



Further eastward still, and extending beyond the county 

 boundary into Nottinghamshire and Lincolnshire, the gravels are 

 almost entirely composed of quartzites and metamorphosed sand- 

 stones and grits from the Bunter Beds. But throughout this 

 quartzite-gravel district there are numerous large sub-angular 

 boulders, e.g.. Whin Sill at Hatfield, Granite at Wroot, Mill- 

 stone Grit at Everton, near Bawtry, etc. And near fiarworth, 

 Notts., is to be seen a section in a gravel pit with quartzite- 

 gravel above and rounded boulders of fossiliferous Magnesian 

 Limestone below. 



About two and a half miles from Doncaster on the Thorne 

 road are some old brickworks. The clay here is of considerable 

 depth (over 30 feet) and is thinly laminated warp clay. It is 

 situated at an elevation of about 40 feet above sea level. At 

 Barnby Dun a similar clay is found, capped by mixed gravels. 

 A boring for water at a point about 20 feet above sea level 

 passed through 198 feet of this clay. 



Such are the facts observed. I leave the explanation of these 

 to others. 



FUNGI. 



Lycoperdon flavosum, Oed. — This well-marked puflf-ball was 

 met with in Pecket Wood, Hebden Bridge, in Augaist 1902, by 

 Mr. J. Needham. It has been submitted to Mr. G. Massee, Kew, 

 who states it to be as above, and a very good addition to the 

 British Fungus Flora. — C. Crossland, Halifax, January 1903. 



Humaria Roumegueri, (Karst.) Sacc, var. carnosissima, 

 Phil., in Crimsworth Dean, Wadsworth. — While Messrs. 

 Jonas Bradley (schoolmaster, Stanburv) and Keighley Snowden 

 were walking over the moors at the head of Crimsworth Dean, 

 13th December 1902, they picked up some fine specimens of 

 this somewhat rare Discomycete and forwarded them to the 

 writer. On examination it was found to be an interesting form 

 intermediate between the type and the var., nearer, if anything, 

 to the latter. This is only about the second time it has been 

 met with in Yorkshire. — C. Crossland, Halifax, January 1903. 



Nntur.-ilist, 



