THE BACILLUS OF LEPROSY. 
93 
glass. Cut through them ; no softening ; scraped th^ surface 
with the edge of the knife^ and placed the parts removed on 
an object-glass, and without any addition of fluid covered over 
with a glass cover. There were seen almost only round-cells, 
very few with granules of fat, some finely granulated, others 
containing rod-shaped bodies, which are sometimes bordered 
by parallel lines, and sometimes pointed at both ends. In 
this latter instance they are about twice as thick in the 
middle as the others. Such bodies are to be found 
where fluid-spaces are formed by the pressure of the glass 
cover surrounded by the dense mass of cells. In these 
spaces the bodies move after the manner of bacteria.” 
Other preparations prepared in the same way were examined 
in a drop of distilled water with Hartnack No. 9, but with no 
result. The round cells are the regressive elements of 
brown colour, which I have both described and drawn in 
my previous contribution to Leprosy’s Characteristics,” 
^ Nord. Med. Art.,’ vol. i. No. 13; these drawings are 
reproduced in “Leprous Diseases of the Eye,” by O. B. Bull 
and G. A. Hansen, Christiania, 1873. In the next place 
I scraped the surface of the tubercle as above, and put 
the scrapings into a drop of water. In such preparations 
an unusually large number of the small bodies show them- 
selves, which have besides more or less lively movements. 
The cells mostly swell up considerably in the water, and in 
the swollen cells the rod-shaped bodies are much more easily 
found; many cells show themselves completely loaded with 
them; at the first glance it seems as if the cells were filled with 
coarse granules, but on closer examination, on the contrary, 
these apparent granules are found to be small, oblong, rod- 
shaped bodies. Several preparations of each kind are then 
placed on the bottom of a glass basin which is covered by 
a larger one ; the bottom is covered with damp sand, and 
over all is placed a glass plate (two preparations with water, 
three without). 
March 1st. — No examination of the preparations. 
2nd. — Preparations appeared as on February 29th. 
3rd. — In one of these preparations with water a mass 'of 
articulated threads was to be found in one place exactly 
corresponding to those which are found in the blood of 
certain lepers after cultivation. 
4th. — In such preparations the articulated threads are to 
be found ; in one of them without water they were found at 
the edge of the preparation, as well as in the spaces filled 
with serum amongst tlie densely packed cells ; these were not 
long threads, only two or three joints fixed to each other. 
