ICONES PHYSIOLOGICAE. 
TABULA III. 
Ova gallinacea, in primo stadio in- 
cubationis 
(primo ac secundo die). 
Partim ad vivum dclineata, partim in schemata redacta. 
Fig. L 
Vitellns ex 12 — 14r horis incnhatus, magnitudinis 
naturalis, quam excedere ridetur, quoniam in testa pla- 
niori situs delineatus est, unde paululum depressus vi- 
detur. a Vitellus, b Area germinativa s. pellucida, cu- 
jus in medio Nota primitiva, embryonis primordium, con- 
spicitur, c. Area pellucida externa (arca vasculosa fu- 
tura). Circuli concentrici externi halones repraesentant. 
Fig. II. 
Idem vitellns; ex membrana vitellina apud a par- 
ticula exsecta est, ac blastoderma illi substratum remo- 
tum; in h Nucleus cicatriculae s. Cumulus proligerus, 
substantia disciformis opacior, vitello imposita conspicitur. 
Fig. m. 
Blastodermatis particula ex fig. II. exsecta, anctae 
magnitudinis, a Nota primitiva, b Area pellucida ob- 
longa. c Area vasculosa ovalis. 
Fig. IV. 
Sectiones fictae ‘fig. I. A Sectio horizontalis. 
S Sectio perj)endicularis. a Membrana vitellina, punctu- 
lis depicta, b Nota primitiva cum lamina serosa bla- 
stodermatis (areae pellucidae respondente), c Lamina 
mucosa (areae vasculosae respondens), d Cumulus pro- 
ligerus s. Nucleus cicatriculae. 
Fig. V. 
Vitellns naturalis magnitudinis, ISmae incubationis 
horae, a Vitellus, b Area pellucida, c Area vascu- 
losa. 
fBebrfttete au6 bet erften 
^ertobe 
(erfter unb smeiter 2!ag). 
na^ icr 3{atur> ftieils fd;cmatif^. 
Fig. I. 
@in Sotter (12 bi§ 14 ©tunbcn bebriifet) in na= 
tuvlid^ec @r5fc, erfebeinf mie bie folgenben etmaS grofer, 
meil er in einer ®ci)a(e liegenb gejcii^nct muvbc 
unb fo efroaS abgeptattet crf(^eint. a 25ofter. b S)urdb= 
fiebtiger ^rud^t^of (area germinativa s. pellucida) in bef= 
fen SJUtte bcr ^rimitinjireifen, (nota primitiva) at§ erfie 
@pur be§ gmbrpo fic^thar ifl. c Superer grud^lbof 
(juMnftigcr ©cfdpbof, area vasculosa). ®ic duperen 
fon 3 entrifdben SJinge jieUcn bie .^atonen bac. 
Fig. n. 
S)crfeibc ®otfer; au§ bec 25otterbaut ift bci a ein 
(Stficf auSgefcbniften unb bie barunter liegenbe J^eim^aut 
iDeggenommen ; in b fie^t man ben ^ern bc§ .^abnenfritfg 
(nucleus blastodermatis) ober ^cimbugel (cumulus proli- 
gerus) al§ bunfkre fcf)eibenf6rntige SRajfe im 25ottcr liegen. 
Fig. m. 
au§ Fig. II auggcfdbnittcne ®fucE bec .Scimbaut 
»ergc6pect. a ®ec ?)cimiti»jiccifcn. b ®ec burcbftdb= 
tige ldnglid)e Srud^tbef. c ®ec cifdrmige ©efdpbof. 
Fig. IV. 
Sbeale Surdbf^nitte non Fig. I. A £luecbucdb= 
fdbnitt. B Sdngenburdbp^nitt. a Dotferbaut, punftirt 
bacgejletlt. b ^rimitin^ceifen nebfi ferofem S3latf bec 
.SIeimbaut (bem burdbftd)tigen ^cudbtbof cntfpcedbenb ). 
c ©(^ieimblaft (bem ©efdpbof enffpre^enb. ) d 
bitgel obec .Sern beS .^abnentrittS. 
Fig. V. 
S)offcc in natficlidbec ©cope, au§ bec I8tcn ©tunbe 
bec Sebeutung. a Sotfec. b 25ucdbftcbtigec gcui^tbof. 
c ©cfdpbof. 
