Franklin P. Mall - 245 
TABLE VII. 
Giving the area and ratio of enlargement of the arterial bed of six organs. 
The numbers in brackets refer to the corresponding numbers in the preceding 
tables which mark the data used in the construction of this table. 
Area of arterial bed in sq. mm. Ratio of enlargement of arterial bed 
am ca a =) 
5 ey, Eun 
tee pep aah Auee by Gras 
Z : woUieaS ze PE 
S os oe = Ba Bs Es Ho 
Ee el SSE = SS foe Dod es 
a Sainte - Be Fes Pirie). Fig 
Imtestines ao..5 10 12 60 2,05 5 196 39 336 
Stomach. 2.4.  4:0:78 6 42 917 1 153 22 229 
Adrenal "Scns .o4 ne 6 199 ae he 33 580 
Soleil a enecd (0) 6 14 4,021 2 670 287 804 
{Didnt ems GG 181.0 801 2,688 23,000. 2 30 9 127 
AVI Ase LOO 354 1,897 92,900 5 264 49 1327 
The area of the vascular trees of the six organs given in Tables I to 
VI is based upon careful estimations made by myself or under my direc- 
tion. If the volume of the organ is carefully considered while the meas- 
urements are being taken, it is relatively easy to gain results which are 
very reliable.- In the intestine equal sections were measured, and in the 
lung and the liver the lobes were measured independently of one another. 
Corrosion specimens were used as much as possible; the finer corrosion 
and thin transparent specimens were measured under the microscope. In 
the liver, lung and spleen the measurements were controlled by the num- 
ber of lobules and their average size. In all cases for each figure given at 
least ten independent measurements were taken from as many different 
organs. The data given in Tables I, II, I1I and V have been published 
elsewhere. Those upon the spleen are in part new and in part from my 
article upon the spleen.” Those upon the liver are entirely new. 
The livers of 29 dogs of medium size averaged 175 cubic centimeters. 
A transverse section of the lobule or a surface measurement of the lobule 
of a hardened liver averages .?7 mm. in diameter.. If a lobule is consid- 
. ered a cylinder 0.7 mm. high and 0.7 mm. in diameter we will find that 
there are about half a million of them in the liver of a medium-sized dog. 
*Estimations from the celiac axis. 
* Artery and portal vein. 
* Mall, Zeitsch. fiir Morphol. u. Anthropol., II, 1900. 
