OF PARASITIC ORIGIN. 83 
Polonica) and T. pilade (including T. sycosis and T. decalvans). 
The author also considers that the only state of the organism 
which will afford a fitting soil for the growth of fungi is 
what he calls the “tuberculous or non-specific eruptive 
erasis or tendency ;” but though this may be generally true, 
it is not universally so, for the writer of this has seen T. sycosis 
more than once in persons certainly affected also with syphi- 
litie eruptions ; indeed, Dr. Fox himself says (p. 41) that the 
two diseases (parasitic disease and syphilis) may be assoeiated. 
Chapter 5, which contains a microscopic description of the 
fungi themselves, is, as stated in the preface, mostly a con- 
densation of the diffuse descriptions in Kiichenmeister’s 
manual, It also contains some useful hints for examination 
of the fungi by the microscope, and shows how they may be 
distinguished from foreign bodies which imitate their appear- 
ance. The characters of the different kinds of fungi are of 
little importance, as Dr. Fox shows that they are insufficient 
for diagnosis and liable to variation. The chapter on the 
appearances presented under the microscope by the lesions 
produced, will be read with interest by all who, interested in 
the science of medicine, care to know something more of 
disease than how to cure it. The plants never grow except 
where the hair-follicles are present, a little way down which is 
their primary seat, where all the conditions most favorable 
to their development are to be found. 
Fungi are found pretty commonly on and in both man and 
the lower animals. Our author mentions several papers and 
books on the subject, and an interesting account may be 
added of some very singular forms of fungi found in the in- 
testines of species of Julus and allied genera, by Dr. Leidy, 
of America, who has paid a good deal of attention to the 
subject ; it will be found in vol. v of the Smithsonian papers, 
published in 1853. 
A list of those which have been described and named by 
various authors as growing on man will be interesting ; it is 
from the fifth chapter of the book in review. Parasitic fungi 
are Epiphytes or Entophytes, as they occur on the skin and 
its appendages or the mucous membranes and internal parts 
of the body respectively. 
A. Eprenyres.—l, Achorion Schonleinii (parasite of Tinea 
favosa) ; 2, Trichophyton tonsurans (of Tinea ionsurans and 
T. circinata); 8, T. sporulotides (of T. Polonica); 4, T. 
-ulcerum ; 5, Microsporon Audouini (of T. decalvans ; 6, Al. 
mentagrophytes (of 7’. sycosis) ; 7, M. furfur (of T. versicolor) ; 
8, Puccinia (favi of Austen; found growing in cases of 7. 
VOL, IV.—NEW SER. c 
