112 BULLETIN OF THE 



Agassiz, Louis (continued). 



Twelve Lectures on Comparative Embryology, delivered before the Lowell 

 Institute iu Boston, December and January, 184S-49. Boston, 1849. 

 104 pp. (Originally published in the Boston Traveller.) 



Lectures II. and III. On Development of Echinoderms ; p. 12. Trav- 

 eller, of Dec. 22, 1848. 



Die Eutwickelung eines Seesternes, Echiuaster. (Eroin Daily Evening Trav- 

 eller, Boston, Dec. 22, 1848.) Archiv f. Anat. Phgs. unci JFiss. Med. 

 1851. pp. 122-124. 



(See also (p. 116) Desor.) 

 Allman, George James. 



On a Pre-Brachial Stage in the Development of Comatula, and its importance 

 in relation to certain Aberrant Forms of Extinct Crinoids. (Read Eeb. 16, 

 1863.) Trans. Rot/. Soc. Edinburgh, XXIIL pp. 241-252, PI. XIII. 

 1864. 



Anderson, John. 



On an apparently New Form of Holothuria. Ann. Mag. Nat. Hist., March, 



1S62, IX. pp. 1S9-191, PI. XL 



(Young Holothuria.) 

 Ankum, H. J. van. 



Mededeelingen omtrent de Vergroeiing van de Generatie-organen bij Echinus 

 en eenigc verwaute Geslachten. Tijdschr. Nederl. Dierk. Vereen., I. pp. 

 176-187, PI. IX. 1874. 



Abstr. : Niederl. Arch. Zool., III., Pt. III. p. 279. 1577. 



Sur la Soudure des Orgaues Genitaux des Oursins lleguliers. Arch. Ne'erl., 

 XL pp. 97-116, Pl.^IX., X. 1876. 

 Apostolides, Nicolas Christo. 



le These. Anatomie et Developpement des Ophiures. Archives de Zool. Exper. 

 et Gener., X., PI. YII.-X11. 1881. 



(Theses presented h la Faculte des Sciences de Paris, 1881. Paris, No. d'Oritre 

 471. 104 pp., G pi.) 



Baer, K. E. v. 



Neue Untcrsnehunson ueber die Entwickelung der Thiere. Frvriep's Ncuc 



Noli:,,,, XXXIX. p. 38. 



(Ei iles Seeigel.) 



Bull. Vhysic-Math. Acad, de Si. Vitmkourg, V. p. 234. 

 (Plnteua of Echini.) 



Balfour, Francis M. 



.V Treatise on Comparative Embryology. Vol. T. xi -f 192 -4- xxii. pp., 



27.-» figs. London, 1SSO. Vol. 11. \i. + 855 + ixil pp., I'-"-' 



London, 1881. 



(Chapter XX.. p. 168. ESchmodamiata.) 



