We now have a 



Department of Pathological Chemistry 



especially equipped to make all the newer CHEMICAL 

 TESTS OF BLOOD AND URINE. This work has 

 been carried out by Folin and Denis, Benedict, Myers 

 and Fine, and has proven of great benefit in the diag- 

 nosis and treatment of Nephritis, Diabetes, Rheuma- 

 tism and Gout. These tests show by examination of 

 the blood what the kidneys do not throw out, and by 

 urinary examination what they excrete. They are quali- 

 tative and quantitative, estimating exactly the amount of 

 urea and uric acid, creatinin, total nitrogen, and sugar, in 

 both blood and urine. 



Full particulars given on request with con- 

 iainers and directions for sending in blood. 



COMPLETE CHEMICAL BLOOD TEST SIO.OO 

 COMPLETE URINARY TEST as above 5 00 

 TEST FOR CO2 to determine Acidosis 5.00 

 ALL OUR SEROLOGICAL TESTS are 5.00 



(We control all our Wassermann work by 

 the Hecht-Weinberg-Gradwohl Reaction) 



TISSUES 5.00 



PASTEUR TREATMENT 50.00 



(18 ampoules with glass syringe) 



Gradwohl Biological Laboratories 



R. B. H. GRADWOHL, M.D., Director 

 928 N. GRAND AVE., ST. LOUIS, MO. 



IF you contemplate establish- 

 ing a journal along technical, 

 scientific or general lines, we 

 believe you will find our organi- 

 zation worthy of special con- 

 sideration. We undertake the 

 development and manufacture 

 of numerous journals. 



We shall be glad to offer the 

 services of our experts to formu- 

 late plans for establishing your 

 journal successfully. 



WILLIAMS & WILKINS COMPANY 



2419-21 Greenmount Avenue 

 BALTIMORE, U. S. A. 



AN EASY METHOD OF BINDING 

 JOURNAL OF BACTERIOLOGY 



A practical binder in which 

 the separate numbers of a pub- 

 lication can be inserted so that 

 they will be held firmly in posi- 

 tion and open as flat as in the 

 original binding. A liinderthat 

 lool^s like a book and is a book. 

 Each copy of Journal can be in- 

 serted in the binder as received. 

 The binding can be done by 

 anyone and in a very few min- 

 utL-s. In buckram cloth , paper 

 label. Price, charges prepaid, 

 $1.00. Cash to be sent with 

 the order. 



WILLIAMS & WILKINS COMPANY 

 2419-21 Greenmount Ave. BALTIMORE, MD., U. S. A. 



