LIST OF ILLUSTRATIONS 



xvn 



FIGURE 



392. Metal cast of the cavities of the skull, 



right side, auditory bulla removed 



393. Transverse vertical section of the 



skull through the sphenoidal fis- 

 sure, seen from behind 



394. Transverse vertical section of skull 



through sphenoidal fissure, seen 

 from in front 



395. Transverse vertical section of skull 



through external auditory meatus, 

 seen from in front 



396. Roof and part of anterior wall of 



nasal chamber, ethmoid removed 



397. Floor of nasal fossa?, ethmoid and 



maxillo-turbinals removed . . . 



398. Outer wall of left nasal cavity from 



within, ethmoid removed . . . 



399. The skull, before birth, natural size 



400. The skull, at birth, natural size . . 



401. The skull, seven days after birth, 



natural size 



402. The skull, eleven days after birth, 



natural size 



403. The skull, thirty days after birth, 



natural size 



404. The skull, forty-four days after birth, 



natural size 



405. The skull, sixty days after birth, 



natural size 



406. The skull, seventy days after birth, 



natural size 



407. The skull, eighty days after birth, 



slightly enlarged 



408. The skull, ninety days after birth, 



natural size 



409. The skull, one hundred and twenty 



days after birth, natural size . . . 



410. Human skull, seen partly in front 



and on the right side. (Leidy) . 



411. Human skull, external view of base, 



right side. (Leidy) 



412. Human skull, internal view of left 



side of base. (Leidy) 



413. The regions of the skeleton .... 



414. The skeleton of the cat, left side 



only 



415. Left clavicle, caudal aspect, enlarged 



three times 



416. Human right clavicle, upper view. 



(Leidy) 



417. The skeleton of the cat, left side 



only 



418. Left scapula, outer aspect 



419. Left scapula, inner aspect 



420. Left scapula, vertebral border . . . 



421. Left scapula, axillary border. . . . 



422. Left scapula, lower end 



423. Some stages in the development of 



the scapula, natural size 



PAGE 



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492 

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499 

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519 

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523 

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526 

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537 



FIGURE PAGE 



424. Human left scapula, posterior view. 



(Leidy) 541 



425. Human left scapula, anterior view. 



(Leidy). 541 



426. The skeleton of the cat, left side 



only 542 



427. Left humerus, proximal end .... 543 



428. Left humerus, outer aspect .... 547 



429. Left humerus, inner aspect .... 549 



430. Left humerus, anterior aspect . . . 552 



431. Left humerus, posterior aspect . . . 554 



432. Left humerus, distal end 555 



433. Plan of the development of the 



humerus from seven centres, natu- 

 ral size 558 



434. The skeleton of the cat 561 



435. Human skeleton in the posture of 



the skeleton of the cat 562 



436. Human left humerus, viewed in 



front. (Leidy) 563 



437. The skeleton of the cat, left side 



only 564 



438. Left ulna, anterior surface 566 



439. The ulna, proximal surface of olec- 



ranon process 567 



440. Left ulna, outer or radial aspect . . 568 



441. Ulna and radius in pronation, poste- 



rior aspect 572 



442. Ulna and radius, inner aspect . . . 573 



443. Plan of the development of the 



ulna from three centres, natural 



size 575 



444. Human bones of the right forearm, 



viewed in front. (Leidy) .... 578 



445. The skeleton of the cat, left side 



only 580 



446. Left radius, anterior surface .... 581 



447. Head of radius, proximal surface . 582 



448. Radius and ulna in pronation, outer 



aspect 585 



449. Left radius and ulna, inner aspect . 587 



450. Left radius and ulna, lower ends . . 589 



451. Plan of the development of the 



radius by three centres 590 



452. Human bones of the right forearm. 



(Leidy) 592 



453. Left hand, palmar aspect 593 



454. Proximal row of left carpal bones, 



proximal aspect 596 



455. Position of scapho-lunar, natural 



size .... 597 



456. Left scapho-lunar, proximal surface 597 



457. Left scapho-lunar, dorsal surface . . 598 



458. Left scapho-lunar, distal surface . . 598 



459. Left scapho-lunar, palmar surface . 599 



460. Left hand, dorsal aspect 600 



461. Position of cuneiform, natural size . 602 



462. Left cuneiform, proximal surface . 602 



463. Left cuneiform, distal surface . . . 603 



