Issue 10, pp. 753-832, October 1861, SMSJ

itouchIL] Muscular jR&iplace which gradually grow, form an arch, and return tothe original tituting a new capillary loop. Buise blind terminati found to pass into fine threiand around are seen lying numerous stellate connectivetissuecorpuscles. It' i reads are 1 in connexion withthe latter, they may be looked upon as pro< fromthem, and the capillary network as a metamorphosis ofcellular elements : but it such a connexion does not exist,then the thread-like appendages must be looked apoiial formations preliminary to the future vessels. Theauthor addressed himself with proper precautionstain which • ws was the right one, andcame to the conclusion that the vascular^outgrowths neither; nor avoid the cellular elements. The same animaliseveral times in the course of two or threedays. On one < rascular growths were seento pass without any other connexion, the-. to widen and acquire nuclei in their walls.Here and there slight zig-zag curves were seen at their termination.Some were en partly in evident connexionwith a stellate cell, and in some cases there was undoubtedlyextension of the cell-pro to the wall of acapillary vessel ; then the cell-bodies were exceedingly distended,all proc< rly visible, hi I I obation,the contents appeared to umilated, and a- than the thread-like one was seen. In theof two cells so concerned, it' the direction of the probe in the region of a neighboring cell, the same will participatein the formation of the vascular wall ; hut if it beernal to the adjoining cell territories, then the vasculartakes an apparently i [course. Ibid./ ; ervations concerningthe minute structure of the pulmoBarj cells have differedremely and attracted much attention. In 1845, \ibrift.'. .1 from the Wieiu r