56 



SPECIFICITY OF THE BLOOD OF VERTEBRATES 

 TABLE 21 Concluded. 



Kind. 



Gulliver. Wonnley. Treadwell. Fonnad. Welcker. Malaseez 



Amphibia Continued : 



Triton ............ f long diameter.. 



\short diameter. 



Amphiuma.. - 



Salamander ....... / long diameter. . 



\short diameter. 



c; rpn I long diameter. . 



\ short diameter. 



Pisces: 



Trout ............. Mong diameter. . 



\ehort diameter. 



p h f long diameter. . 



' \ short diameter . 



f 



30.0 

 19.6 

 69.8 

 41.4 



709 

 409 



f 

 ' \ 



long diameter. . 

 short diameter . j 

 long diameter. . 

 short diameter. 



Lamprey* 



Sole ( long diameter. . 



' \short diameter. 



Skate (long diameter., 



(.short diameter. 



Torpedo i lon g diameter. . 



I short diameter. 

 Sea-horse* 



16.7 

 10.3 

 12.1 



9.0 

 12.7 



7.1 

 14.6 



8.9 



9.0 



29.3 

 19.5 



51.2 

 31.7 

 37.8 

 23.8 

 41.0 

 29.8 



15.0 



120 

 90 

 25 

 14 

 27 

 200 

 150 



* Circular. 



The figures recorded by different observers (Gram, Fortschr. d. Medicin, 

 1884, n, 33; Georgopulus, Zeit. f. klin. Medicin, 1906, LXIII, 322; White and 

 Treadwell, Reference Handbook of the Medical Sciences, 1901, n, 84; Gulli- 

 ver, Proc. Zoolog. Society, London, 1875, 474; Wormley, Microchemistry 

 of Poisons, 2d ed., Phila., 1888; Welcker, Zeit. f. rat. Medicin, Ser. 3, 1863, 

 xx, 257; Malassez, Compt. rend. Acad. d. Sciences, 1872, LXXV, 1528; 

 Formad, Comparative Studies of Mammalian Blood, Phila., 1888, and 

 Journal of Comparative Medicine and Surgery, July, 1888, etc.) in their 

 studies of given species differ in many instances. As a rule, Wormley's 

 figures are somewhat higher than Gulliver's, while Formad 's and Tread- 

 well's are lower. These differences are not of importance, since on the 

 whole they are remarkably close and entirely in accord in their indications 

 of generic peculiarities. 



Human corpuscles have been more thoroughly studied than those of 

 any other species. The extreme limits of measurements probably lie within 

 4 to 10 jt/, but the ordinary range may be placed at about 6 to 9.5 fi. The 

 mean is from 7.9 to 8 (i. The remarkably large proportion that measure 

 close to the average is shown by the figures of Gram, Georgopulus, White, 

 and others : Gram found that 82 per cent were of about the average meas- 

 urements, 13 per cent larger, and 5 per cent smaller; Georgopulus records 

 73 per cent between 7 and 7.5 ,, 10 per cent between 8 and 8.5 n, and 17 

 per cent between 6 and 6.5 /u; and White, 79.5 per cent between 7.5 and 

 8.5 f/, 12 per cent between 8.5 and 9.25 /.i, and 8.5 per cent between 6.25 

 and 7.5 u. 



