VISUAL INSTRUCTION 



WITH 



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MODEL 3 



is made perfect because it is an IDEAL 

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IDEAL because it embodies basic ideas 

 (Patented) possessed by no other. Example : 

 Mechanical means of handling the slides, 

 which does away with the old antequated 

 lantern-slide holder and at the same time 

 gives a "dissolving effect" on the screen, 

 unattainedwith other outfits except by using 

 two Stereopticons, one above the other. 



One Spencer Delineascope does it 



New Booklet' K*10 Just Ready 



Spencer Delineascope Model 3, for both lantern slides and 



opaque objects 



1000 Watt Mazda bulb illuminant. Price, $150.00 



SPENCER LENS COMPANY 



BUFFALO, N. Y. 



MANUFACTURERS OF 



MICROSCOPES, MICROTOMES, DELINEASCOPES 



OPTICAL GLASS, SCIENTIFIC APPARATUS, ETC. 



JOURNAL OF IMMUNOLOGY 



OFFICIAL PUBLICATION OF 



THE SOCIETY FOR SEROLOGY AND HEMATOLOGY AND 



THE AMERICAN ASSOCIATION OF IMMUNOLOGISTS 



Edited by Arthur F. Coca 

 Vol. IV. No. 5 CONTENTS SEPTEMBER, 1919 



Takaatsu Kyutokc. A Study of the Thermolabile and Thermostable Antilysins (Anticomplementary . 



Substances) of Human Serum 239 



Joseph E. Sands and Lyle B. West. Experiments on the Removal of Hemagglutinin from Rabbit Anti- 

 human Serum 275 



Yoshimoto Fukuhara and Masaaki Yoshioka. A New Method of Testing Antityphoid Serum 285 



Yoshimoto Fukuhara. A New Method of Testing Antitoxic Dysentery Serum 299 



Mark ,1. Gottleib. Experimental Pupura : 309 



Charles W. Duval and William H. Harris. The Antigenic Property of the Pfeiffer Bacillus as Related 



to its Value in the Prophylaxis of Epidemic Influenza 317 



Julia T. Parker. The Poisons of the Influenza Bacillus 331 



Eugenia Valentine and Georgia M. Cooper. On the Existence of a Multiplicity of Races of B. influ- 

 enzae as Determined by Agglutination and Agglutinin Absorption 359 



T. Harris Boughton. Studies in Protein Intoxication. IV . Histologic Lesions Produced bv Injections 



of Pepton 381 



William W. Ford and George Huntington Williams. Observations on the Production of an Antihae- 



motoxin for the Haemotoxin of Bacterium welchii (Bacillus aerogenes capsulatus) 385 



Current Volume: Vol. IV, 1919— Price, $5.00 Domestic; $5.50 Foreign 



Back volumes can be furnished: Vol. I, 1916, Nos. 1-5 inch: Vol. II, 1917, Nos. l-6incl.; Vol. Ill, 1918, Nos. 1-6 



incl. Price perset: $18.00, Domestic; S18. 75, Canada; S19. 50, Foreign. Prices are net postpaid. 



Subscription Order for the Journal of Immunology 



WILLIAMS & WILKINS COMPANY, Mount Royal and Guilford Avenues, Baltimore, Md., U.S.A. 



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