1901 - 2 .] Prof. Schafer on Injection of Liver Cells. 67 
far as I have been able to observe, actually within the nucleus,* 
and it has the same intensity of colour within the cells as in 
the blood-vessels. The injection has not passed into the cells 
after having been extravasated into the intercellular biliary 
ducts, for the latter contain no trace of injection, and are indeed 
completely invisible. This is also the case with the perivascular 
lymphatics of the lobules (if such vessels exist). There is, besides, 
no diffusion of carmine, and the cell nuclei are wholly unstained. 
In the substance of the lobules the injection is confined to the 
Fig. 1 . — From liver of rabbit injected from portal vein. The injection 
material has passed into minute channels within the cells. 
blood-vessels and to the intracellular channels. It is also seen, 
but of a fainter colour, i.e., in a diluted condition, in the 
lymphatics which accompany the branches of the portal and 
hepatic veins ; and the connective tissue around these vessels, and 
extending a short distance into the lobules, is stained by carmine. 
The intracellular channels bear a very close resemblance to those 
which have been figured by Professor Browicz within a liver 
cell, from a case of obstruction of the bile ducts ; and although, 
at first sight, it might seem that these are to be regarded as 
enlarged intracellular biliary canaliculi, yet, as he has himself 
suggested, they may at least in part represent the nutritive 
channels, the existence of which he infers, and into which, in 
* Professor Browicz is of opinion that the nutritive canals, the existence of 
which he has, it would seem correctly, assumed, are continued into the 
interior of the nucleus. 
