NOTES. 463 



ovum incubatum prioribus quinque diebns subit." Vicebergi, 

 1817. (Dissertatio inauguralis.) "Contributions toward the 

 history of the evolution of the chick within the egg." (" Beitrage 

 zur Entvvickelungsgeschichte des Hiihnchens im Eie." Wiirz- 

 burg, 1817.) 



21 (i. 52). Karl Ernst Baer, "On the Evolution of Animals. 

 Observations and Reflections " (" Ueber Entwickelungsgeschichte 

 der Thiere. Beobachtang und Reflexion." 2 vols. Konigsberg, 

 1827-1837). In addition to this chief work, cf. " Story of the- 

 Life and Writings of Dr. Karl Ernst Baer, told by himself "' 

 ("Nachrichten iiber Lebon und Schriften des Dr. Karl Ernst 

 Baer, mitgetheilt von ihm selbst." Petersburg, 1865). 



22 (i. GO). Albert Kolliker. His "History of the Evolution of 

 Man and the Higher Animals " (" Entwickelungsgeschichte des 

 Menschen und der hoheren Thiere "). The 2nd (corrected) edition, 

 1876, contains (pp. 28-40) a catalogue of ontogenetic literature. 

 On the newer contributions to this, cf. the " Jahresberichte 

 iiber die Leistungen und Fortschritte der Medicin " (Berlin), by 

 Virchow and Hirsch (the " History of Evolution," by Waldeyer) ; 

 also the " Jahresberichte iiber die Fortschritte der Anatomic und 

 Physiologic," by Hofmann and Schwalbe (Leipzig) ; the "History 

 of Evolution," by R. Hertwig and Nitsche. Most of Kowalev- 

 sky's researches are contained in the " Memoircs de I'Academie 

 imperiale de St. Petersburg " (from the year 18G6). Others are 

 published in Max Schultze's "Archiv fiir mikroskopische 

 Anatom.ie," and in other periodicals. 



23 (i. 60). Theodor Schwann, " Microscopic Researches into 

 the Identity in Structure and Growth of Plants and Animals " 

 {" Mikroskopische Untersuchungen iiber die Uebereinstimmung 

 in der Structur und Wachsthum der Thiere und Pflanzen." 

 Berlin, 1839). 



24 (i. 69). Ernst Haeckel, the Gastrsea Theory, phylogenetic 

 classification of the animal kingdom and homology of the germ- 

 layers. — " Jenaische Zeitschrift fiir Naturwissenschaft," vol. viii. 

 1874, pp. 1-56. 



25- (i. 75). Ernst Haeckel, "The History of Creation." 



London, 1876. 



63 



