BRACHIOPODA. 



1856. Liiiffula, Billings. Canadian Naturalist anil Geologist. 



1856. Lingula, Em.mons. American Geology. 



1857. Lingula, Cox. Geological Survey of Kentucky, vol. iii. 



1858. Lingula, Meek and Hatdek. Proc. Acad. Nat. Sci. Phila. 



1858. Lingula, Suc.mard. Tran.s. St. Louis Acaileniy of Sciences. 

 I85i1. Lingula, Billings. Canadian Naturali.st and Geologist. 



1859. Lingula, Hall. PaUeontology N. Y., vol. iii. 



1S60. Lingula, Hall. Thirteenth Rept. N. Y. Statf Cab. Nat. Hist. 



1861. Lingula, Billikgs. Canadian Naturalist and Geologist. 



1862. Lingula, Hall. Fifteenth Rept. N. Y. State Cab. Nat. Hist. 

 1862. Lingula, Billings. Paleozoic Fossils, vol. i. 



1862. Lingula, Whitb. Proc. Boston Soc. Nat. Hist. 



1S63. Lingtda, Hall. Sixteenth Rept. N. Y. State Cab. Nat. Hist. 



1863. Lingula, Hall. Trans. Albany Institute. 



1863. Lingula, Winchell. Proc. Acad. Nat. Si;i. Phila. 



1865. Lingula, White. Proc. Boston Soc. Nat. Hist. 



1865. Lingula, Billings. Palneozoic Fossils, vol. i. 



1866. Lingula, Billings. Catalogue Sihii-ian Fossils Anticosti. 



1867. Lingula, Hall. Palaeontology N. Y., vol. iv. 



1868. Lingula, Meek. Trans. Chicago Academy of Sciences. 



1868. Lingula, Meek and Worthbn. Geological Sui-vey Illinois, vol. iii. 

 1S69(?) Lingula, Winchell. Proc. American Philosophical Society. 



1872. Lingula, Meek. Rept. Palseontology Eastern Nebraska. 



1873. Lingula, Hall. Twenty-third Rept. N. Y. State Cab. Nat. Hi.st. 



1873. Lingula, Meek and Wortuen. Geological Survey Illinois, vol. v. 



1874. Lingula, Ratubcx. Bull. Buffalo Soc. Nat. Hist. 

 1874. Lingula, White. Wheeler's Exjil. 100th Meridian. 



1874. Lingula, Billings. Palaeozoic Fossils, vol. ii. 



1875. Lingula. Nicholson. Rept. Palaeontology Province of Ontario. 

 1875. Lingula, Meek. Geological Survey Ohio ; Palaeontology, vol. ii. 

 1875. Lingula, James. Cincinnati Quart. Journ. Science. 



1875. Lingula, Hall and Whitfield. Geological Survey Ohio ; Palaeontology, vol. ii. 



1875. Lingula, S. A. Miller. Cincinnati Quart. Journ. Science. 



1878. Lingula, Rathedn. Proc. Boston Soc. Nat. Hist. 



1879. Lingula, Emerson. GpoI. Frobisher Bay, in Nourse's Narr. Hall's Arctic Expedition. 



1879. Lingula, Hall. Descrip. Neve Spec. Fossils from the Niagara Group. 



1880. Lingula, N. H. Winchell. Geological Survey Minn., Eighth Ann. Rept. 



1880. Lingula, Whitfield. American Journal of Science. 



1881. Lingula, Hall. Eleventh Ann. Rept. State Geologist Indiana. 



1882. Lingula, Whitfield. Geology Wisconsin, vol. iv. 



1884. Lingula. H. S. Williams. Bull. No. 3, U. S. Geological Survey. 



1884. Lingula, White. Thirteenth Ann. Rept. State Geologist Indiana. 



1884. Lingula, Worthbn. Bull. No. 2, Ilhnois State Mus. Nat. Hist. 



1884. Lingula, Walcott. Palaeontology Eureka District. 

 18S4. Lingula, Ringuebbrg. Proc. Acad. Nat. Sci. Phila. 



1885. Lingula, Clarke. Bull. No. 16, U. S. Geological Survey. 



1887. Lingula. Whitkaves. Geo!, and Nat. Hist. Surv. Canada. 



1888. Lingula, Herrick. Bull. Denison Univ., vol. iv, pt. 1. 



1889. Lingula, Walcott. Proceedings of United States National Museum 1888. 

 1889. Lingula, Nettelroth. Kentucky Fossil Shells. 



