MR. W. K. PARKER ON THE SKULL IN THE MAMMALIA. 
PLATE 23. 
Number of 
times 
| magnified. 
Tulpa europea (8rd. stage) ; embryo; 74 lines long; Ist | 
| of a series of verticaliy-transverse sections . . . «| 13 
| The same; 2nd section. . . . . . «s+ ss s i3 
| The same; 8rd section. . . . ae ee 13 
The same; 4th section . ree? oe By, 5 | 13 
| The same ; Ath sectigue.- Gyn Gs). eh da ee enn 13 
The same ; 6th section . 
The same ; 7th section . 
The same; 8th secticn . 
he same ; 10th section 
The same ;_ 11th section 
The same; 12th section 
| 
eal 
4 
The same; 9th section . 
The same; 13th section ais yi lg 
The same; 14th section ; b ae! 13 
The same ; 15th section mak | 13 
Talpa europea (4th stage), embryo, 9 rect tong; Ist of | 
a series of vertically-tramsyverse seciiumS . - 1 ee 13 
' The same; 2nd section. . . . . nee: 13 
The same; 3rd section. . . . . EB ees 1123 
The same :-4th sectioniy. 9) 412. Goel i ep ieee 13 
The same ;-Sth section «. ; .)), . 4 21h) J 2 . & 13 
The-same + 6th section «.).¢ 72). 729. The ay 13 
The same; 7thsection. . . . «6 2 + +e w 1 | 13 
Thesame: 8th section . . 0 2 a 4 Ae ae me Gs | 13 
The same; 9th section. ©. 2. 2. . 6 2 1 1 we 13 
Theisame > L0th-section «”..1 1) 4% We Lee | i 
