46 



Correspondence — Mr. H. Woods. 



from JS'ew- Zealand seas, 48 from either JSTew-Zealand or Australian 

 waters, and 28 have been found fossil in Australia. Judging from 

 these alone, it would seem that some authors have assigned too remote 

 an age to the deposits. The new forms described were : — 



Memhranipora occultaia 

 Monoporella capensis, var. dentata, 



waipukurensis. 



Micropora variperforata. 



Mucrowlla tricuspis, var. waipuJcurensis. 



, var. minima, 



Jirmata. 



Porina grandipora. 



Lepralia semiiuna, var. simplex. 



bistata 



ScMzoporella cinctipora, var. per sonata. 



tuberosa, var. angustata. 



Cellepora decepta. 



, sp. 



coiaE-EsiPOiTiDEisrciK! 



ON THE OCCUERENCE OF PHOSPHATIC NODULES IN THE LOWER 

 GEEENSAND, EAST OF SANDOWN. 



SiE, — When working near Sandown, in company with Mr. H. 

 Keeping, we observed several beds of phosphatic nodules in the Lower 

 Greensand ; these do not appear to have been previously noticed, no 

 mention being made of them in the Survey or other memoirs on the 

 district. Mr. Bristow describes some " concretionary masses or bodies" 

 which occur in Fitton's bed No. xvi. at Rocken End, near Black 

 Gang : these may represent some of the nodule beds at Sandown. 



The phosphates are of a light brown colour, and occur at four horizons. 

 The three lowermost are very distinct, and come between 160 and 200 

 feet from the top of the Lower Greensand, whilst the fourth is some 

 distance higher up. The second band from the bottom is about seven 

 inches in thickness, and from it the following fossils were obtained : — 

 Ammonites biplex, Sow. A. eordatus, Sow. Pleurotomaria st^. Cardium 

 striatulum ? Lucina sp. Myacites sp. Cytherea riigosa ? Area con- 

 tracia, Phill. They are all much rounded, and difficult to determine. 

 In this bed there are also fragments of various rocks, such as quartzite, 

 Ivdian stone, etc., the first of which greatly resembles those in the 

 Budleigh Salterton pebble bed. The nodules in the upper band are 

 much smaller, and are associated with a great many quartz pebbles. 



The phosphates and fossils of the lower beds are very similar to 

 those of Brickhill and Potton in Bedfordshire, Wicken in Cambridge- 

 shire and Tealby in Lincolnshire. The second bed noticed above is 

 sufficiently thick to be worked for commercial purposes, but the strata 

 dip at such a high angle, that but little of the phosphates could be 

 profitably obtained. 



The Geological Survey is now engaged in the district, and the exact 

 horizons at which the nodules occur will no doubt be given in their 

 sections. H. Woods. 



■WOODWARDIAN MuSEUM, CAMBRIDGE. 



THE PEA GRIT OP LECKHAMPTON HILL. 

 SiR^ — The letter of my friend, Mr. E. Wethered, in the last num- 

 ber of the Magazine, requires some notice from me. Mr. Wethered 

 takes exception to a remark in my paper on the basement-beds of 

 the Inferior Oolite, that the beds between the Pea Grit proper and the 



