ON THE ERRATIC BLOCKS OF ENGLAND, WALES, AND IRELAND. 119 



angular ; no stride ; very fine-grained ; white. Boulder of sandstone, 

 25x16x14 in.; sub-angular; no striae; fine-grained; yellow. Two 

 boulders of conglomerate (pudding-stcne), 21x18x11 in. and 16x11 

 X 6 in. ; one very coarse and pebbles varying in size, the other with much 

 smaller pebbles and all of a size. 



In lane — Large boulder of felspar porphyrite ; rounded and polished, 

 and very hard. 



Parish, Great Waltham, Ford or Fourth End, 3 miles S. 



Ford End Hill — Boulder of sandstone, 19 xlOin. ; buried in ground ; 

 grey ; micaceous. Boulder of limestone (Carboniferous), 16 X 16 in. 

 Boulder of flint, 19 X 14 in. Boulder of sandstone, 16 X 11 in.; gritty, red. 



At Hill Farm — Boulder of sandstone ; 30 X 19 X 11 in. ; ridge-shaped ; 

 sub-angular ; fine-grained ; yellow. Boulder of sandstone, 29 X 22 x 20 in. ; 

 oblong ; rounded ; gritty and loose ; white. Four boulders of sandstone, 

 respectively 28 X 24 x 16 in. ; compact ; yellow, 21 X 17 X 16 in. ; conical ; 

 compact; yellow, 17x16x12 in.; sub- angular ; hard; greyish yellow, 

 16 X 13 X 7 in. ; sub-angular ; gritty ; micaceous. Two smaller boulders 

 of dolerite. 



At Littley Park, 2 miles S.S.E.— Boulder of sandstone, 33x25 

 X 22 in. ; roughly columnar ; much polished ; compact ; yellow. 



At Littley Green, 2^ miles, S.S.E. — Boulder of limestone (Carboni- 

 ferous), 28 X 26 X 12 in. ; nearly square; striated; hard; compact; 

 fine-grained. 



Parish, Little Leighs, 4 miles S.E, 



Near Leighs Priory — Boulder of dolerite, 13 X 9 X 6 in. ; much 

 weathered. Smaller boulder of dolerite. Large boulder of felspar por- 

 phyry broken in several jjieces ; matrix bright red ; felspar very clear. 

 Sandstone, 26 X 16 x 7 in. ; much polished ; compact ; yellow. 



Parish, Great Leighs, 6 miles S.E. 



At Fulbourn's Farm — Boulder of conglomerate, buried in ground so 

 that surface is level with ground, 52 x 43 in. ; Herts, pudding-stone. 

 Boulder of sandstone, 48x20x12 in.; ridge-shaped; compact; yellow. 



Parish, Braintree, 6 miles E.N.E. 



At Bocking Place — Boulder of gneiss, 22 x 18 x 11 in. ; roughly tri- 

 angular, with two flat surfaces, deeply striated irregularly. Boulder of 

 limestone (Carboniferous) almost composed of large shells of Productus. 



Parish, Felstead. 



At Princes Halfyards Farm, IJ mile N. — Boulder of sandstone, 

 77 X 36 X 20 in., fixed deeply in ground, so that 36 in. does not represent 

 its real height ; gritty, yellowish, grey. Three boulders of dolerite, 

 broken up before being measured, but none exceeding 12 in. in diameter. 



At Moor Farm, 1^ mile N.E. — Boulder of dolerite and boulder of 

 porphyrite, both broken up, not exceeding 12 in. in diameter. 



At Cock Green, 2 miles S.E. — Boulder of dolerite, almost circular, 

 scarcely weathered, rather over 12 in. in diameter ; hypersthene-bearing 

 ophitic dolerite. 



At French's Green, 3 miles E. — Very large boulder of compact 

 yellow sandstone, since removed. A large heap of several hundred 



