. The anatomical record. Anatomy; Anatomy. 506 ARTHUR W. MEYER INTERCALATED (?) HEMAL NODES The hemal node shown in outhne in figure 12 was foinul in the pre-vertebral fat of a sheep. It is a very small flattened node measuring only X 3 X mm., but is peculiar in being trans- fixed, as it were, by a vein. Although the specimen has not been examined microscopically^ from what I know of hemal nodes I feel certain that it also has arterial relations and is there- fore not intercalated in a vein, as the figure might suggest and as has been assumed b}'- some. Indeed, I have never seen a hema
. The anatomical record. Anatomy; Anatomy. 506 ARTHUR W. MEYER INTERCALATED (?) HEMAL NODES The hemal node shown in outhne in figure 12 was foinul in the pre-vertebral fat of a sheep. It is a very small flattened node measuring only X 3 X mm., but is peculiar in being trans- fixed, as it were, by a vein. Although the specimen has not been examined microscopically^ from what I know of hemal nodes I feel certain that it also has arterial relations and is there- fore not intercalated in a vein, as the figure might suggest and as has been assumed b}'- some. Indeed, I have never seen a hemal node solely intercalated in the course of veins, although I have seen several nodes which were completely crossed by both veins and arteries (figs. 10 and 11, ''Hemolymph nodes of the sheep," Standford University, 1913).. Fig. 12 Hemal uotle with two veins; actual t^ize aljuut 3 mm. Since this node is so small it might seem that one of these vessels is a vein and the other a distended artery had not in- jections frequently shown that it is not extremely rare to find two veins leaving a single nod'e in opposite directions. I am cntain this is the case here. THE GENESIS OF SFPEHXTMI-HAKV SPLEF:NS One of the theories of the genesis of some accessory spleens has long held that they not infrequently result from the isolation of small processes or lobules from the main mass. The main and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; American Society of Zoologists; Wistar Institute of Anatomy and Biology. [New York, etc. ] A. R. Liss [etc. ]
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