238 NEW BOOKS, WITH SHORT NOTICES. 



tissue — in fact, as " peri-lymphangial nodules and tracts ;" and that 

 the farther the develoj)ment is advanced the more numerous are the 

 lymph-corpuscles at the spot— the more does the cellular network 

 assume the character of an adenoid network. From their topo- 

 graphical arrangement they are analogues of the fat tissue of the 

 omentum ; and the writer considers at length their conversion into fat 

 nodules and tracts. In the third chapter he describes the lymphatic 

 vessels of the serous membranes, their relation to the surface of the 

 latter, and the development of lymphatic capillaries. He distinguishes 

 two kinds of stomata on the surface of the serous membranes, stomata 

 vera and stomata spui'ia or pseud o-stomata, the former rej^resenting 

 either the mouth of a vertical lymphatic channel, or a discontinuity of 

 the endothelium of the surface. He points out also that normally 

 in the omentum and the mediastinal pleura, knots and cords originate 

 by the outgrowth of the endothelium of the lymphatic capillaries as a 

 network of branched cells from which young cells spring. The fourth 

 chapter is taken up with the distribution of blood-vessels in the 

 lymphangial nodules and cords, and the development of blood capil- 

 laries. The principle according to which the latter takes place he 

 finds to be similar to that which was first pointed out by Strieker in 

 the new formation of blood-vessels in the tadpole and in inflammation, 

 and confiiTQcd in every j^articular by Arnold afterwards. In a patch 

 in which there is a considerable number of young vessels one capillary 

 may easily be found which ends ccecally. At the ccecal end the proto- 

 plasmic character of the wall may be recognized very clearly ; the 

 lumen becomes more or less suddenly narrowed, the wall finally 

 becomes solid, and passes into a perfectly ordinary nucleated branched 

 cell of the matrix. In the second section he sketches briefly the views 

 of different writers on inflammation and artificial tuberculosis, and 

 shows that they are all, more or less, borne out by his own descrii)tion 

 of the normal serous membranes. For instance, Eanvier and Kundrat 

 confirm the germination of the endothelium in inflammation of these 

 tissues, and the latter considers the miliary nodules on the serous 

 membranes in tuberculosis to be derived from the same soui'ce. 

 Sanderson holds that there is a pre-existing adenoid tissue in the 

 omentum, in the form of nodules and cords, which increases to an 

 extraordinary extent in chronic inflammation, so that the nodules and 

 cords of tubercle found in artificial tuberculosis are nothing but 

 hyperplastic adenoid tissue. Knaufi"s views on the same subject are 

 precisely similar ; while Klebs declares that in the same affection the 

 lymphatic vessels play a most important part, their endothelium pro- 

 liferating, and thus composing the tubercle-knot. The book closes 

 with the observations of the author himself on the changes found in 

 these serous membranes in acute and chronic peritonitis; and in an 

 interesting, though somewhat abrupt tailpiece to a most interesting 

 volume, a fact is mentioned which has bearings somewhat difierent to 

 the intended scope of the book, the occui-rence, namely, of the ova of 

 certain entozoa in the lymphatics of the omentum and mesentery of 

 rabbits and cats. 



For reasons stated at the commencement of this article, we have 



