TRANSACTIONS OF MICHOSCOPICAL SOCIETY. 
DESCRIPTION OF PLATE VII, 
Illustrating Mr. Grovels paper on a Fungus parasitic in the 
Human Ear_, and Dr. Farre^s paper on the Human Embryo."^ 
Fig. 
1. — xVppearance of the fruit of tlie fungus on the floccose mycelium, under 
a low power. 
2. — Portion magnified 400 diameters, the dark *' head" in the centre pro- 
bably more matured than the remainder ; most of the heads are 
smaller and of a fawn colour — such is the one represented on the 
right ; the three on the left are in an early stage. Some of the 
mycelium is also sliown. 
3. — One of the "heads" viewed from above. 
4. — Sporules detached in mounting ; here and there amongst the mycelium 
were patches of them, probably nature-sown. 
5. — Threads of mycelium ramifying beneath the surface, amongst the deli- 
cate hexagonal pavement epithelium ; when it reaches the surface 
many short branches arise, as shown towards the upper left corner. 
6. — Mycelium in a vesicular condition, perhaps from abundance of moisture 
in such part ; it may be worth inquiry whether a process of true 
conjugation may not take place in such circumstances. The idea 
has been mooted before, and I have seen other instances which 
appear to add to its probability. A priori, it does not seem unlikely 
that a fungus, ' growing in an excessively moist locality or in water, 
may, in such alga-like condition, conjugate like an Alga. 
7. — An ascus, with four greenish sporidia, on a portion of the mycelium, 
whether accidentally or not, it may be difficult to say. No other 
example was seen ; so that it may not have any connection with the 
other fungus. 
8. — Embryo of the natural size contained in the fcetal membranes. 
9. — The same embryo removed from the membranes, magnified 8 diame- 
ters. 
B. Prosencephalon, 
c. Mesencephalon. 
D. Epencephalon. 
E. Rudimentary upper extremity, 
r. Lower ditto. 
&. Heart, consisting of auricle, ventricle, and bulbus arteriosus. 
H. Probably Wolffian body. 
K. Root of allantois. 
L. Probably a portion of rudimentary intestine, into which appears to 
open the remains of a vitelline vesicle. Behind this is a body in 
which rudimentary cells are seen (hepatic ?) 
N. Branchial laminae (visceralbogen). 
* Eigs. 1 — 7 are multiplied 7 diameters. 
