part 21 M.MKSToNK OF Tin: lkickstkksiiihk coalkikld. 101) 



Tlio various strata ))a»(«l tlirouirli in tlie Ixtrin*; may he sum- 

 marized ]»rietly as follows : 



Th icknegs in feet. 



Red marlf* with veins i)f f.»-yi».sum = Keupor about 279 



Grey sandstones — Millstone Grit about 9 



Thin grey liuiewtones. with <lark i 



shalen and thicker lime- = Carboniferous Limestone about 82 

 st<^»nes behjw. * 



Total «leptli of boring . 370 



EXPLANATION OF PLATES VII-XL 



Plate VIL 



Exposures at Ticknall : the Caverns: 5 = dolomites; 4 = thinly-bedded lime- 

 st<mes with Proditrtns ; 3 = sandy stratum; 2 = foraminiferal 

 dolomitic limest<me9 ; 1 — Encrinital limestones and shalea. 



Plate VIIL 



The main exi)osure at Ticknall ; o== yellow and grey dolomites ; 4, 3, 2 as in 

 PI. VIL 



Plate IX. 



The southern fault at Breedon Clond, showing thinly-be<ldod red dolomite 

 above thicker yellow dolomites with chert. 



Plate X. 



-'. 1. Ticknall dolomitic limestone ; calcite stained with Lembergs soluti(»n. 

 X 2.5 diameters. (See p. 90.) 



2. Ticknall grey dolomite. Compare the degree of idiomorphism with 



that of fig. ."). X 2.5 fliametcrs. (See p. 90.) 



3. Organi*' limestone, Calke Park. Idiomorphic rhombohedni of dolomite 



containing linKmitc. not arranged in any i)articular order. Note 



the invasion of organic structures by the rhonibohedra of dtdomite. 



X 20 diameters. (See p. 93.) 

 L Dolomite from the ujiper be<ls at Bree«l(m-on-the-Hill. Hiematite in- 



cluf«i(ms arrangtMl zonally. clear outer margins. Dolomite of 



Triassic origin, x 2.") iliameters. (See p. 105.) 

 '». Dense yellow dolomite. Breedcm Cloud. Finer grain than in the 



Ticknall d<.lomite. X 2.") <liameters. (See p. 105.) 

 (i. Transverse section of Caninia rf. patuht Michelin. Natural size. 



(See p. 107.) 



Plate XL 



< Geological map of the Ciirboniferous Limestone bor.lcring the Leicestershire 

 Cotilfield, on the pcale (»f 1 inch to the mile, .)r 1 : (53,360. 



DistlssiON. 



Mr. K. K. L. l)i\»»N. after eouLrratulatini; the Author and 

 remarkiiiix «»n tlie elosi' eonnexion of tlie Iieieestei*sliiiv Carhonife- 

 rotLs Limestone with tlie Derhyslnre and Wrekin devoli^pments a.s 

 agjiinst those found in South Wales and ('lee Hill, asked the 

 A\ith«>r on what t'videnee tlu- shali's hetween the hii^hest limestone 

 and the Millstone (irit were assi»^ned to the Pendlesi<le Series. 



k2 



