[13] See notes, p. [93.]

[14] See notes, p. [87.]

[15]

F. Ameghino: 'Contribucion al conocimiento de los mamíferos de la república Argentina.' In Actas de la Academia nacional de Sciencias en Cordoba, 1889.—Another article in Revista Argentina de Historia natural. Buenos Aires, 1891.

A. Gaudry: 'Animaux fossiles et géologie de l'Attique.' 1862.—'Le Dryopithèque.' Mém. Soc. géol. de France: 'Paléontologie.' 1890.

O. Marsh: 'Introduction and Succession of Vertebrate Life in America.' Address, Amer. Assoc. Adv. Sci., Nashville, 1887.

H. F. Osborn: 'The Rise of the Mammalia in North America.' Address, Amer. Assoc. Adv. Sci., Madison, 1893.

L. Ruetimeyer: 'Ueber die Herkunft unserer Thierwelt,' Basel, 1867.

C. S. Forsyth Major: 'Fossil Monkeys from Madagascar.' Geological Magazine, 1896.

M. Schlosser: 'Ueber die Beziehungen der ausgestorbenen Saeugethierfaunen und ihr Verhaeltniss zur Saeugethierfauna der Gegenwart.' Biolog. Centralblatt, 1888.

[161] See notes, p. [102], [106].

[171] See note, p. [97].

[18] Wilhelm Bischoff of Munich: works on the history of the development of the rabbit, dog, guinea-pig, roe-deer. 1840-1854.

[191] See note, p. [96].

[20] 'Ueber die Entwicklung der einfachen Ascidien,' Mém. Acad. St. Petersbourg, vii. ser., tome x. (1866). Other papers in 'Archiv f. Mikroskop. Anatomie,' vii. (1871); xiii. (1877).

[21] See notes, p. [102], [106].