_A note on the Salt in the Wadi Rayan_, Appendix II, Egyptian Irrigation (Willcocks), London, 1899. SCOTT MONCRIEFF, SIR COLIN—_Note on the Wadi Raian Project_, Cairo, 1889. STROMER, E.—_Zeuglodonten-Reste aus dem oberen Mitteleocän des Fayûm_, Bayer. Akad. Wissensch., Bd. XXXII, 1902. _Einiges über Bau und Stellung der Zeuglodonten_, Zeitschr. d. Deutsch. Geolog. Gesellsch. 1903. See also Beiträge zur Paläont. u. Geol. Osterr.-Ungarins u. des Orients. Band XV. Heft II and III. _Afrika als Entstehungszentrum für Säugetiere_, Zeitschr. d. Deutsch. Geolog. Gesellsch. 1903. WHITEHOUSE, COPE.—_Bull. of the American Geographical Society_, 1882. WILLCOCKS, SIR WILLIAM.—_Perennial Irrigation and Flood Protection in Egypt_, P.W.M. Report, Cairo, 1894. _Egyptian Irrigation_, 2nd Edit. London, 1899. _The Assuan Reservoir and Lake Mœris_, London, 1904. ZITTEL, K. V.—_Geologie u. Palaeontologie der Libyschen Wüste_, Cassel, 1883. * * * * * APPENDIX II. * * * * * _Paul Oppenheim has recently published[100] a description of a large collection of Egyptian lamellibranchs; the following is a list of the species of which examples have been collected in the Fayûm (including Rayan and Moêla). Figured species are marked by an asterisk._ *Gryphaea pharaonum, Oppenh Lower Mokattam. *Ostrea (Gryphaea) Whitehousei, May.-Eym. „ *O. „ Edmondstonei, May-Eym. „ *O. „ histris, May.-Eym. „ *Gryphaea (?) arabica, May.-Eym. „ *O. elegans, Desh. Upper (and intermediate) Mokattam. *O. Fraasi, May.-Eym. Lower and Upper Mokattam. *O. Stanleyi, May.-Eym. „ „ *O. Cailliaudi, May.-Eym. Upper Mokattam. *O. ramosa, May.-Eym. Lower Mokattam. *O. plicata, Sol. Mokattam Series. O. paucicostata, Oppenh. Lower Mokattam. O. Reili, Fraas. Lower and Upper Mokattam. O. Schweinfurthi, May.-Eym. Upper Mokattam. O. Sickenbergeri, May.-Eym. „ *O. Hessi, May.-Eym. Lower and Upper Mokattam. *O. qeruniana, May.-Eym. Mokattam Series. O. gigantica, Sol. Upper (and intermediate) Mokattam. *O. (Alectryonia) Clot-Beyi, Bell. Lower and Upper Mokattam. *O. ( „ ) Bellardi, May.-Eym. Lower Mokattam. O. ( „ ) semipectinata, Schafh. „ *O. ( „ ) Mehemeti, May.-Eym. „ Carolia placunoides, Cantraine Lower and Upper Mokattam.