Chapter XIII. General Conclusions. Pp. [331]-388.
I. Mode of origin and homologies of the germinal layers, pp. [331]-360. Formation of the primary germinal layers, pp. [332], [333]. Invagination, pp. [333]-335. Delamination, pp. [335]-338. Phylogenetic significance of delamination and invagination, pp. [338]-345. Homologies of the germinal layers, pp. [345], [346]. The origin of the mesoblast, pp. [346]-360.
II. Larval forms: their nature, origin, and affinities. Preliminary considerations, pp. [360]-362. Types of larvæ, pp. [363]-384. Phylogenetic conclusions, pp. [384], [385]. General conclusions and summary, pp. [385], [386].
PART II. ORGANOGENY;
Introduction. Pp. [391], [392].
Chapter XIV. The Epidermis and its Derivatives. Pp. [393]-399.
Protective epidermic structures, pp. [393]-397. Dermal skeletal structures, p. [397]. Glands, pp. [397], [398].
Chapter XV. The Nervous System. Pp. [400]-469.
The origin of the nervous system, pp. [400]-405. Nervous system of the Invertebrata, pp. [405]-414. Central nervous system of the Vertebrata, pp. [415]-447. Spinal chord, pp. [415]-419. General development of the brain, pp. [419]-423. Hind-brain, pp. [424]-427. Mid-brain, pp. [427], [428]. General development of fore-brain, pp. [428]-430. Thalamencephalon, pp. [430]-435. Pituitary body, pp. [435]-437. Cerebral Hemispheres, pp. [437]-444. Olfactory lobes, pp. [444], 445. General conclusions as to the central nervous system of the Vertebrata, pp. [445]-447. Development of the cranial and spinal nerves, pp. [448]-466. Spinal nerves, pp. [448]-455. Cranial nerves, pp. [455]-466. Sympathetic nervous system, pp. [466]-468.
Chapter XVI. Organs of Vision. Pp. [470]-511.