DUNGHAN— FROG BEDS. 47 



Fars series.— Name proposed by G. B. Pilgrim (Mem., Geol. Surv., 

 Ind., XXXIV, 7, 25, 26-51, 1908) for a series of beds very exten- 

 sively developed in Southern Persia and the Gulf region. 

 Equivalent to the lower part of Loftus' Gypsiferous series, which 

 name is dropped. Divided into three divisions — 

 3. Coast beds or Pecten vasseli beds (Sarmatian). 

 2. Plateau beds or Ostrea verleti beds (Tortonian). 

 1. Basal gypsum beds (Helvetian). 



Fermorite.— Mineral named by G. T. Prior and G. H. F. Smith after 

 L. L. Fermor (Nature, LXXXIII, 513, 1910 ; Min. Mag., XVI, 

 No. 7-4, 84, 1911). Arsenate, phosphate, and fluoride of 

 calcium and strontium, isomorphous with apatite. Found by 

 L. L. Fermor among the manganese-ores at Sitapar in the 

 Chhindwara district, Central Provinces. 



Fossiliferous limestone of Pondicherry.— T. J. Newbold (Jown., 

 Roy. As. Soc., VIII, 213, 1844) thus refers to the Cretaceous rocks 

 of the Pondicherry area, quoting the conclusions of Forbes and 

 Murchison regarding the Cretaceous age of the fossils collected by 

 himself and Messrs. Kaye and Cunliffe. 



Fossil=WOOd series. — Term originally suggested by W. Theobald 

 (Rec, Geol. Surv., Ind., II, 79, 1869 ; Mem., Geol. Surv., Ind., 

 X, 247, 1873) for the sandstones in the Irrawaddy valley 

 characterised by large quantities of silicified wood. Afterwards 

 named Irrauaddy system, or series, by F. Noetling with the consent 

 of W. Theobald (Rec., Geol. Surv., Ind., XXVIII, 151, 1895). 



Freshwater beds Of Sur.— G. E. Pilgrim (Mem., Geol. Surv., Ind., 

 XXXIV, 54, 1908). A series of shaly and sandy limestones, 

 30 miles from Sur (22° 34' ; 59° 30') on the coast of 'Oman, south- 

 east of Muscat. Age unknown ; possibly Pliocene and at 

 least Miocene from their position. 



Freshwater limestone and chert.— T. J. Newbold (Joum., Roy. 

 As. Soc., VIII, 219, 1844) used this term for the freshwater 

 limestones under the Deccan Trap now known as Lametas 

 (q. v.). He regarded the fossils as of Tertiary age. 



Frog beds. — Name given by A. B. Wynne (Mem., Geol. Surv., Ind., 

 Vol. VI, 385, 1869) to certain shale bands intercalated with ash 

 beds which were exposed during the reclamation works of Back 

 Bay, Bombay, showing numerous skeletons of frogs determined 

 by F. Stoliczka (ibid., 387) as Oxyglossus fusillus=Rana pusilla, 

 Ow. 



