74 QUARTERLY CHRONICLE OF MICROSCOPICAL SCIENCE. 
to see a very distinct network of nerves.— Abstract in ‘ London 
Medical Record,’ 1874, p. 35. 
IX. Vascular System.—1. Ventricular Septum of the Frog 
and the Rabbit—¥F. Champneys (‘Stricker’s Jahrbucher,’ 
also ‘ Journal of Anatomy and Physiology,’ May, 1874) de- 
scribes the general structure, muscles, nerve-fibres, nerve- 
cells, and endothelium of this structure. 
2. Histology of the Heart and its Coverings.—Skworzow 
(‘Pfliiger’s Archiv, vol. viii, abstract in ‘London Medical 
Record,’ 1874, p. 262) discusses the lymphatics, nerves, and 
endothelium of the heart and pericardium. 
3. Structure of Vessels as shown by Nitrate of Silver.—M. 
Reich (‘ Wiener Sitzungsber,’ iii Abth., Bd. lxvii, 1873, 
p- 81; ‘Centralblatt,’ 1874, p. 589). 
X. Digestive and Respiratory Organs and Glands.—l. On 
the Mucous Membrane of the Larynx.—Coyne (‘ Thése pour 
le Doctorat,’ Paris, 1874) studied the mucosa of the larynx 
on the true and false vocal cords and in the ventricle. ‘The 
mucous membrane, which is smooth throughout nearly its 
whole extent, has numerous prominences in the ventricle, 
especially its external wall, which are simply folds of the 
membrane, and not due to papille, as erroneously stated by 
Luschka. Coyne confirms the existence of a basement mem- 
brane, which may, he suggests, consist of a layer of endo- 
thelium. The corium consists of two layers. The super- 
ficial layer is reticular in structure, aud contains lymphatic 
follicles with a delicate reticulum in the ventricle, especially 
in the above-described mucous folds immediately beneath the 
basement membrane. These had not been previously de- 
scribed in man, but similar follicles have been found by 
Verson in the pig and sheep at the root of the epiglottis. 
At the free border of the true vocal cord the adenoid tissue 
is replaced by a dense fibro-elastic membrane covered with 
small simple papille. The deeper layer of the corium con- 
tains the mucous glands, which are large over the centre of 
the false vocal cord. The epithelium is squamous and stra- 
tified over the papille of the true vocal cord. On the free 
edge of the false vocal cord it is formed of three or four very 
regular layers of polygonal epithelium, over which there are 
two or three layers of flattened non-nucleated cells. In the 
remainder of the mucous membrane the epithelium is columnar 
and ciliated. 
2. On the Histology of the Villi of the Small Intestine.— 
Thauhoffer (‘ Pfliiger’s Archiv,’ 1873, p. 391) describes the 
hyaline striated band at the base of the epithelium as being 
an appearance due to the apposition of a number of minute, 
