Tin 01 i in: KIDDLE QKBU LAI ' 341 



Stieda. I'liU'ism-hun-rn iiU-r dir Knt wirklimg drr (ilaiidula thymus. 



dulathv : tilandula car"' :'</ 1H81. 



Strahl, H. Xur ]:ildun<: d.-r rioakc do ryo. Archiv f. 



\\. I'hvsiol. An;it. Al.th. 1886. 



Toldt und Zuckerkondl. Uebei i ungen dcr 



ohlichon U'ber wiihr. \kad. d. 



ns.-h. \Vien, matli.-naturw. Cl. Bd. I. XXII. lahrg. 1875, 



I-. I'll. 1870. 

 Toldt, C. Ban- r.nd War hstlunnsvi-ran-i ninio-n del ' 



Darmcanalea, IV-nk-ehr. d. k. Akad. d. ' :i, niath.-i. 



I'.d. XI. I. AMli. '2, 1*79, IT- 1- 

 Toldt, C. Die Kntwicklung und Ausbildung der Driisen des Ma^ens. 



Sit/ungsb. d. k. Akad. d. Wi>si-n.<ch. Wicii. iiiatli.-iiatur\v. Cl. lid. I.XXXII. 



Abth. I!, Jahrg. 1880, p. 57. 1881. 

 Toldt, C. I >ie Darmgekrose u. Netze. Denkschr. d. k. Akad. d. \\Vsensch. 



Wicn, in:itli.-naturw. Cl. Bd. LVI. Abth. 1, pp. 1-4G. 1889. 

 Tomes, Charles. Manual of Dental Anatomy, Human and Comparative. 



London issi*. German translation by Hollander, lierl'm 1^77. 

 Uskow, N. Bemerkungen zur Entwicklungsgeschichte der Leber u. der 



Lungen. Archiv f. mikr. Anat. Bd. XXII. 1883. 

 Waldeyer. ]'-au und Entwicklung der Ziihne. Strieker's Handuuch U-r 



Lehre von den Geweben. Leijtzig 1871. Kn^lish translation. New York 



1872. 



Waldeyer. Untersuchungen Uber die Entwicklung der Ziihnc. jtun-.'xj 1864. 

 Wolfler, Anton. Ueber die Entwicklung und den Bau der Schilddrii.-e. 



lirrlin 1880. 



Wolflf, Caspar Priedr. Ueber die Bildung des Darmcanals im bebri. 

 Huhnchfii. Uebcrsetzt von Fr. Meckel. Halle 1812. 



CHAPTER XV, 

 THE OltGANS OF THE MIDDLE GERM-LATER. 



VOLUNTARY Mrscri.ATnn-:, L'IUNAHV AND SKXUAL ORGAN-. 



THE organs which take their origin from the middle germ-layer 

 stand in the closest u r m tic- rdation to tlio morphological products of 

 the entoblast. For, as was stntrd in tlic lirst part of this \vork, the 

 middle germ-layer is <l v-lop d ly a j.im- n t i-vaLriiiatimi from the 

 inner germ-layer, and is therefore, lik- tli- latt-r. an pitlielial mem- 

 brane, which srrves as the boundary of a cavity. In view of its 

 origin, is it remarkalli- that the organs ari>in^ from it are of a 

 glandular nattir*-. ainNuch a> pruhn- >jis ly means of g'iuiiin' 



epithelial glandular colls 1 



In earlier times this phenomenon was tin- cause of a good deal 



