. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature. ondro-r^ranium) at the timeof hatching, and iniliat type it stops atthis stage, not raisingitsolf into a fortlj-standing rostrum Tho mouth, which inthe first stage was a large four-sided cleft, no-i svnii of oi-vtwhowhond wnsflvdine^with produced corners,and clean beneath thehead, as in a Skate, isnow a space, tlie asisIf which points more forward than downward, a good steptowards its eventuiil direction. The further developmentof the facial arches will be best studied in older specimensat the end of thi
. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature. ondro-r^ranium) at the timeof hatching, and iniliat type it stops atthis stage, not raisingitsolf into a fortlj-standing rostrum Tho mouth, which inthe first stage was a large four-sided cleft, no-i svnii of oi-vtwhowhond wnsflvdine^with produced corners,and clean beneath thehead, as in a Skate, isnow a space, tlie asisIf which points more forward than downward, a good steptowards its eventuiil direction. The further developmentof the facial arches will be best studied in older specimensat the end of this, tho second stage; but at its commence-ment there is wanted the condition of the of the hyoid, or second post-oral arch. This hasnot been worked out in the Fowls cliick, but in an embryoof tho House Martin [Ckclidon wbica), corresponding tothe stage given in our third figure as to development. In this instance the quadrate and articular Meckeliancartilages have acquired very nearly their proper form(fig. 5, q., ar., mk), the suspensorial part having a free for-. lunir, more than hnlf of biids-cyc view, x 12diuiiietcrs, Lcttciinff as above, wirli ailditlonof , iiiTCsllnc muss, or paracliordul eartll-ace; internal caiolld artery; 8, foramenfor TaRu5 nerve. Here the linRuIa (/p.) showsthe apex of the trabcculfflextcrnaily.
Size: 1246px × 2004px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidencyclopaedi, bookyear1902
