448 LESLIE B. AREY 



dagegen leicht, dass auch hier irn Profil die Korperchen die schonste 

 Gloekenform zoisen. Damit diirfte also wohl die Beobachtung gegen 

 jeden Einwand gosicliert scin. 



In his next contribution ('03) additional evidence was pre- 

 sented. A rat was killed by decapitation and a thin slice of 

 muscle observed between slide and cover. Cup-shaped cor- 

 puscles were seen in circulation. Weidenreich further recom- 

 mends for study the wing of the hibernating bat. 



Lewis ('04, p. 516) reported that, in the omentum of the 

 guniea-pig, "The flowing bodies were seen to be flexible bodies, 

 somewhat variable in their proportions, some deeper, some flatter 

 but all that could be clearly observed were cup shaped." A 

 demonstration was made to Professor Minot who became con- 

 vinced of the correctness of the view ('12). In his text ('13) 

 Lewis incorporates these conclusions and figures circulating 

 cups. 



Triolo ('05) stated that the corpuscles examined by him in 

 the mesentery of the guinea-pig were complete spheres. 



Lohner ('10) viewed the capillaries in bits of excised mesentery 

 of the mouse and in muscle fragments. In great part cups were 

 observed but a suspicion that the cups seen were not real arose 

 when the corpuscles emerging from the capillaries appeared as 

 discs; also the corpuscles within vessels viewed strictly in profile 

 showed constantly a disc shape. To test further this deception 

 Lohner constructed a model. Colorless and colored biconcave 

 glass discs 5 mm. in diameter were made. These were placed 

 in a correspondingly large glass tube filled with fluid and the 

 tube laid horizontally in a fluid-filled receptacle having a glass 

 top and bottom. By properly choosing the hquids (alcohol in 

 the tube, xylol or glycerine in the outer receptacle) the effect 

 was said to be startling, one receiving the impression of observ- 

 ing typical cups. 



In a series of contributions Jolly ('05, '06 a; '06 b; '09) presented 

 the results of his studies on the circulating blood in the wings of 

 bats prematurely brought out of hibernation. He describes 

 long chains of rouleaux which fill the capillaries and break up 

 within the larger vessels into short segments; this phenomenon 



