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

—814 ( orpuscles of the Spleen. [October,Bchott had asserted that their walls contained muscularfibres. Acknowledgment of tins was refused by llossignol,Adriani, Kolliker, llarting, Dondere, Reichert, &c; but< ierlach admitted the fact of their presence, and Molesehott,fortified by this opinion, addressed himself to reverify whatlie had previously stated. Accordingly, the lungs of thepig, of the ox, and of man were examined, adult animalsbeing found the best. The process is as follows : Portionsare to be cut oft' and macerated in tolerably concentratedacetic acid for some months, then macerated for twenty-fourhours in distilled water, and examined, moistened withvery dilute acetic acid. In this way the walls of the pulmonaryvesicles may be seen to contain smooth nucleatedmuscular fibres of a somewhat yellowish hue ; or they maybe seen by inflating and drying the lung, and then makingthin sections, which must be left for three or four hours invery dilute acetic acid; and for more complete isolation ofthe fibres, they should be macerated for half an hour in aweak solution of potash. The first method of preparationbest suits the lung of man and of the ox; the second suitsbest the pig's lung. In the case of the ox lung, fascicles oftwo, or four, or more muscular fibres in juxtaposition maybe seen, but in man, two fibres are but seldom seen united.Molesehott gives minutely tlie form, situation and chemicalreaction of the fibres, as well as of their nuclei, and discriminatesbetween them and other elements, such as fusiformepithelium of small arteries and elastic-tissue cellules,with which thev might be confused. Ibid.On the M(rtpighian Corjniscles of the SpLcn . ByKowalewsky.*N'In his observations, the author made use of the spleens ofthe dog and cat, either in a fresh state, or hardened in anaqueous Bollition of scsipiichloride of iron, as used by Fuhrerand Billroth. According to him, the Malptghian bodies liein the neighborhood of tolerably large arterial and venous\ itvliou\ Arclriv. Band rx. Hefte. 1. 2, p. 208.