The Morphology of Functional Activity in the Ganglion Cells etc. 521 
Diameters 
of Cell 
Diameters 
of Nucleus 
Volume 
of Cell 
Volume 
of 
Nucleus 
Nucleus- 
plasma 
Coefficier.t 
Average 
Volume 
of Cell 
Average 
Volume 
of Nuclei 
Nucleus-. 
plasraa 
Coefficieut 
46 X 3ß X 38 
17 X 17 X 12 
62 928 
3 468 
17.1 
54 X 26 X 45 
17 X 11 X 15 
63 180 
2 805 
21.5 
61 959 
3 368 
14.4 
63 X 36 X 28 
17 X 16 X 13 
63 504 
3 536 
16.9 
43 X 38 X 40 
16 X 15 X 14 
65 360 
3 360 
18.5 
65 440 
3 584 
17.3 
52 X 36 X 35 
17 X 16 X 14 
65 520 
3 808 
16 2 
47 X 44 X 35 
17X14X12 
72 380 
2 856 
24.3 
50 X 33 X 44 
16 X 12 X 15 
72 600 
to 
00 
CO 
o 
24.2 
73 031 
3 382 
20.6 
J)50X 42X35 
17X17X14 
73 500 
4 040 
17.2 
51 X 38 X 38 
18 X 16 X 13 
73 644 
3 744 
18.7 
57 X 38 X 35 
16 X 12 X 15 
75 810 
2 880 
25.3 
53 X 41 X 34 
17 X 17 X 15 
76055 
4 335 
16.5 
42 X 38 X 48 
17X16X14 
76 608 
3 808 
19.1 
77125 
3 442 
21.4 
63 X 53 X 20 
19 X 14 X 10 
78 652 
2 660 
28.5 
43 X 27 X 68 
18 X 14 X 14 
78 948 
3 528 
21.4 
51 X 46 X 35 
17 X 16 X 14 
82110 
3 808 
25.6 
82110 
3 808 
25.6 
58 X 42 X 35 
17 X 14 X 14 
85 260 
3 332 
24.6 
85 260 
3 332 
24.6 
58 X 42 X 40 
18 X 16 X 15 
97 440 
4 320 
21.6 
97 230 
4176 
22.3 
49 X 44 X 45 
18 X 16 X 14 
97 020 
4 032 
23.1 
49 X 46 X 45 
17 X 17 X 14 
101 430 
4 046 
24.1 
101 430 
4 046 
24.1 
55 X 48 X 45 
19 X 18 X 13 
118 800 
4 446 
25.7 
118 800 
4 446 
25.7 
58 X 41 X 53 
56 X 48 X 48 
19X17X17 
17X16X15 
126 034 
129 024 
5 491 
4 080 
22.0 
30.6 
127 529 
4 785 
25.7 
54 X 49 X 63 
17 X 17 X 14 
166 698 
4 046 
40.2 
166 698 
4 046 
40.2 
theory, “For every cell there exists a certaiii definite relation of niiclear 
mass to cell mass which may be represented by tlie formula N/P.” This 
now weU-known theory needs no discussion save in a sumining up of 
its Status in reference to the nerve cell. Hertwig indeed Avas cautious 
in extending this conception to those ceUs which possess nuclear materials 
outside the nucleus (1908). 
This nucleus-plasma relation may be profoundly altered, as stated 
by Hertwig, by uninterrupted function, starvation and changes of 
temperature. Excluding those effects due to function, in otherwise normal 
nerve eeUs, it has been found by the writer to hold invariably for the 
normal, that is, the resting cell, in widely scattered types of cells both 
In Order, tbese cella are represented in Figures 18—21. 
