THE BLOODVESSELS IN INFLAMMATION. 153 
from the blood by endosmosis, and so producing inspissation of 
the plasma. 
In the Fifth Chapter, the State of the Blood and Blood- 
vessels of a Part of the Web of a Frog, cauterized with Blue- 
stone, is briefly considered. 
Chapter VI . — Of the State of the Blood and the Blood- 
vessels during the Healing Process, as observed in the 
Web of the Frog. 
Section 1 . — Of the State of the Blood and the Bloodvessels 
during the Healing of a Wound of the Web. 
(a) When an artery is cut across, in a day or tw , the circula- 
tion is re-established. In two cases observed by Mr. Jones, the 
cut ends of the artery became re-united, and the current re- 
established. Ordinarily, the circulation is restored by an anas- 
tomosing branch between a neighbouring artery and the lower 
portion of the divided artery. 
(b) When capillaries are cut across, they shrink and dis- 
appear; those around the margin of the wound enlarge. 
(c) When a vein only is cut across, usually the capillary 
anastomosis between the first considerable radicle above and that 
below the wound becomes enlarged. 
(d) When arteries, capillaries, and veins are cut across . — 
At the extreme margin of the wound, the process of granulation, 
including the development of new capillaries, which constitute 
the terminal loops of the marginal network, goes on. Sub- 
sequently, some of the capillaries shrink and disappear, the 
circulation becoming freer in the remainder. Most of the red 
corpuscles in these capillaries are distended, and of a rounded 
form. 
Section 2 . — State of the Blood and the Bloodvessels during 
the Process of Resolution of Inflammation of the Frog's Web 
excited by the Application of a strong Solution of Salt . — The 
agglomerated mass of red corpuscles oscillates, yielding at each 
stroke of the heart, and again recoiling. The mass is pushed 
by vis a tergo onward, till it projects slightly into a vessel in 
which the flow of blood is free ; here the stream detaches and 
carries away the corpuscles composing the protruding part. In 
this way, Mr. Jones observes, one vessel after another is cleared, 
until the circulation is fully re-established. 
This process may be promoted by the application of agents 
possessing the property of causing dilatation of the arteries and 
acceleration of the flow of blood, even a solution of salt. 
“ The promotion of the process by the applications referred 
to is an interesting illustration of the modus operandi of stimu- 
VOL. XXIV. Y 
