xliv TM1LE OF ILLU8TBATIO 



".arinm of tin- Itabbit 

 408. Constituent purls of mammalian ovum, ei.ti.v 



incut parts of mammalian ovum, ruptnn .1 

 nnati. n of tli.' eoipu luttMini . . 



-111. (M'lH-rutivi' organs of the Mar. . i-olnlc 1 . 



412. (M in r;Mi\c orpins of I. xitn . 



Jl:;. Termination of milk-duct in duster of follicles 

 411. Ultiuiftto follicles of mammary gland, \\iili .s-rctii!^ ''dla . 

 415. Microscopic appearance of milk . . . 



41G. Human uterus, with its tppeodagM . . 



417. First stages in segmentation of mammalian ovum . 



418. Later stages in segmentation .... 



419. Section through embryo of the Chick, first day of incubation 



420. Plan of early uterine ovum .... 



421. Diagram of ovum at formation of the nmnion . . 

 1'J'J. Exterior of tlie chorial sac, Mare .... 

 423. Fecundated egg, showing formation of amnioa and allantois 



I'Jl. !'. emulated e-rir. with amnion nearly completed . . 



rj.'i FiBttis of the Mare, with Ha envelopes. . . 



-l:M. Portion of ultimate ramifications of umbilical vessels . 

 \S7. r..rtionofoneof the fcetal villi ... 



428. Equine foetus, opened on left side to show umbilical vessels 



429. Blood-vessels in liver of an equine foetus at mid-term . 



430. Liver of a Lamb at birth . . . 



431. Diagram of an early human ovum ... 



432. Diagram of a human ovum in second month . . 



433. Early stages in the development of a Fowl . 



434. Transverse section of embryo of Chick on third day . 

 \'.'<^. Plan of development of eye .... 



436. Origin of encephalic centres in human embryo of sixth week 



437. Plan of chorda dorsal is at period of formal ion of embryo . 



438. Plan of vertebra at an early period of development . 



439. Head of a fcetal Lamb, showing Meckel's cartilage . 



440. Plan of first system of vessels, embryo ... 



441. Embryonic heart at an early period, anterior view . 



442. Ditto, seen from behind .... 



443. Heart of an equine foetus ..... 



444. Plan of the aortu and its arches at an early period . 



445. Plan of the circulation in the human embryo, side view . 

 44U. First appearance of the lungs . ... 



447. Embryo of DC g at twenty-five days . . . 



448. Origin of liver from intestinal wall of embryo Chick . 

 419. Urinary and genital apparatus in embryo Chick . . 

 450. Section of Fowl's egg . . 



