Professor J. W. McLaughlin, M. D. 
73 
meager appliances, we begin to appreciate his remarkable skill and 
ability as well as the exceptional strength of his devotion to the 
cause of science. 
In 1887 he published an article entitled “The Etiology of Acute 
Infectious Diseases” in Daniel’s Texas Medical Journal, and in 1890 
he read a paper at the Texas State Medical Association entitled “An 
Explanation of the Phenomena of Immunity and Contagion, Based 
Upon the Action of Physical and Biological Laws.” 
In connection with the latter paper he said : “I found it impossible 
to intelligently and fully include a subject so complex and noved within 
the compass of a society essay, consequently the paper was seriously 
crippled by its brevity. Notwithstanding this defect, it received from 
some of the leading medical journals of this country very favorable 
notices, and the complete article was translated into a foreign lan- 
guage and published in a foreign medical journal. 
‘ * The encouragement I received from such favorable notice induced 
me to be more fully elaborate, and again publish an article on this 
subject. This I did during the last year in serial numbers of the 
Texas Sanitarium.” These articles, corrected and enriched with new 
matter bearing upon this subject, compose the volume entitled “Fer- 
mentation, Infection and Immunity,” published in 1892. 
In addition to the above, I beg to mention several of his most im- 
portant minor publications, as follows: 
“The Advantage and Use of the Microscope to the General Prac- 
tioner in Diagnosis and Therapy. ’ ’ Read before the State Medical As- 
sociation, April, 1904. 
“ Gastro-Intestinal Condition in Epilepsy.” Reprinted from the 
Medical News, (New York), April 15, 1905. 
“The Modern Diagnostic Method in Cancer of the Stomach.” Read 
before the State Medical Association, April 1906. 
“Personal Observations in Latent Malaria.” Read before the 
Twelfth District Medical Society, January, 1908. 
“A Catalytic Theory of Infection and Immunity.” Reprinted 
from the Medical Record, May 1, 1909. 
“Critical Remarks on Ehrlich’s Side Chain Theory of Immunity.” 
Presidential address of the Texas Academy of Science, October, 1909. 
It may be of special interest to this company who knew J. W. Mc- 
laughlin personally, if I digress at this point to read from a letter 
written upon his death bed, probably the last manuscript he ever 
published. 
There had been some correspondence between him and Arthur Le- 
fevre upon certain points in his catalytic theory of immunization. 
