QUARTERLY CHRONICLE. 93 



5. " Embryological Note," by Dr. V, Hensen. 



6. " The Epithelium of the Papilla Vallatce/' by Dr. G. 

 Scliwalbe. 



This paper is of importance in connection with the very 

 detailed paper on Epithelium, published in the second part 

 of the ' Archiv/ by Dr. Franz Eilhardt Schulze. It also is 

 remarkable that Dr. Christian Loven, of Stockholm, has 

 arrived at results very similar to those of Dr. Schwalbe. 

 Dr. Loveu^s paper is translated in the first part of the 

 ' Archiv^ for 1868, and at the same time the detailed paper 

 of Dr. Schwalbe, of which the present is only a preliminary 

 notice, is promised. He has found in the pavement-like epi- 

 thelium of the papilla3 vallatse of the mammalian tongue, large 

 flask-like bodies or open cells, which he considers, without 

 doubt, are the analogues of the end-organs of the nervous 

 glossopharyngeus of fishes, described by Franz E. Schulze in 

 the paper already alluded to. Although their connection with 

 the sense of taste is not certain, he will call them, as Professor 

 Max Schulze suggests, " schmeckbechers " (taste-cuplets). 

 In a further paper he hopes to show the relation of the nerve 

 twigs and the connective tissue which lies beneath the cells 

 or cuplets. This is known to be peculiarly rich in fine nerve 

 twigs, some of which W. Krause traced to end-bulbs in the 

 tips of secondary papillse. It is noticeable that the 

 " schmeckbechers" do not appear on the free surface of the 

 papillae, but in the wall and fossa, where there is an accumu- 

 lation of fluids. 



Pai-t I, 1868. — 1. " The Adenoid Tissue of the Pars nasalis 

 of the Human Pharynx," by Professor Dr. Hubert von 

 Luschka. 



The rounded follicular developments at the back of the 

 pharynx, which in many ways closely resemble the Peyer's 

 glands of the intestine, form the subject of this paper. The 

 distribution of the structures, and the minute arrangement of 

 the tissue, are carefully considered, and illustrated in a plate. 



2. " On Rods and Cones of the Retina," by Dr. W. 

 Steiulin. 



3. " Remarks on Dr. Steinlin's Paper ,'"' by Max Schultze. 

 Dr. Sieinlin remarks that since Professor Max Schultze 



has endeavoured to establish a physiological difi^erence be- 

 tween rods and cones, it is necessary to be very exact in the 

 use of those terms. He has himself described the rods of 

 birds, amphibia and fishes, as cones (Zapfen), deprived of 

 the fat-drop. He, therefore, proposes to call every element 

 of the columnar layer of the retina, which consists of three 

 parts clearly separable from one another — Cones (Zapfen) : 



