[3] The Pamunkey gets its name from a tribe of Indians famous in the early days of Virginian history but now reduced to a few families living on a reservation situated on the banks of the river near Lester Manor. Mattaponi is a combination name. The Mat and the Ta unite to form Matta Creek. The Matta and the Po unite, and Ny Creek is a tributary to the Po. The waters of these streams unite to form the river, and the names Mat, Ta, Po, and Ny unite to form its name--Mattaponi. [4] A. H. Brooks, personal communication. [5] Eric Mjöberg: A Proposed Aërial Expedition for the Exploration of the Unknown Interior of New Guinea, _Geogr. Rev._, Vol. 3, 1917, pp. 89-106. [6] The Use of Aerial Photographs in Topographic Mapping: A Report of the Committee on Photographic Surveying of the Board of Surveys and Maps of the Federal Government, 1920, _Air Service Information Circular (Aviation) No. 184_, War Department, Washington, D. C., 1921. [7] What can be done, however, by photographing obliquely from a high altitude, thereby increasing the area in the field of vision, is illustrated by Figure 54, which encompasses Lake Erie from one shore to the other and, in its representation of the main features of the region, is akin to maps on a relatively small scale, such as 1:1,000,000. [8] J. W. Bagley: The Use of the Panoramic Camera in Topographic Surveying, With Notes on the Application of Photogrammetry to Aerial Surveys, _U. S. Geol. Survey Bull. 657_, p. 84. “The scale of the photograph is given by the relation _f_/H, _f_ being the focal length of the lens and H the height of the camera above ground.” (_Ibid._) [9] E. Lester Jones: The Aeroplane in Surveying and Mapping, _Flying_, June, 1919, pp. 438-441, 472, and 476. [10] H. E. Ives: Airplane Photography, 1920, pp. 407-408. [11] E. Lester Jones: Surveying From the Air, _Science_, Vol. 52, 1920 (Oct. 17), pp. 574-575, and _Engineering News-Record_, Dec. 16, 1920, pp. 1184-1186. [12] E. Lester Jones, _op. cit._ (_Science_), p. 575. [13] J. Volmat: Application de la photographie aérienne aux levés hydrographiques, _Comptes Rendus de l’Acad. des Sci. [de Paris]_, Vol. 169, 1919, Oct. 27, pp. 717-718; _idem_: Rapport sur la mission photohydrographique de Brest (1919), _Annales Hydrogr._ (publ. by Service Hydrographique de la Marine, Paris), 3rd Series, 1919-20, pp. 191-220, with seven air photographs and corresponding sections from French coast charts. [14] H. Hamshaw Thomas: Geographical Reconnaissance by Aeroplane Photography, With Special Reference to the Work Done on the Palestine Front, _Geogr. Journ._, Vol. 55, 1920, pp. 349-376; reference on p. 369. End of the Project Gutenberg EBook of The Face of the Earth as Seen from the Air, by Willis Thomas Lee