BAIRD &TATLOCK (LONDON) LTD. 



815 



817-821 



815 T Dr. Oliver's Clinical Mercurial Compressed Air Manometer, complete instrument, 

 with Auditory Tambour and Visual tube . . . . . . . . . . each 



816' Clinical Mercurial Compressed-Air Manometer, with Filler and Armlet 



Haemocolorimeters, according to Prof. Dr. W. Autenrieth and Prof. Dr. J. 

 Kcenigsberger. 



The new colorimeter for determining the haemoglobin in the form of hydrochloric hematin can be easily 

 and rapidly manipulated, its initial cost is small and it is sufficiently exact for investigations of this sort. 



The colorimeters constructed hitherto are either very expensive apparatus and not easy to manipulate, or 

 can be used only for approximately determining haemoglobin. Another disadvantage of the colorimeters 

 generally used is that the comparison solution, the hydrochloric hematin does not keep ; the colouring matter 

 is deposited and in about one year the comparison solution is considerably weaker in colour than at the begin- 

 ning. In the new colorimeter this drawback is removed by the hydrochloric hematin being replaced by an 

 optically equal and durable solution. 



Manipulation is further simplified by its being necessary to add only once a certain quantity of the i-io 

 standard hydrochloric acid to the blood and it can then be directly compared by shifting the wedge. In this 

 manner one does away with diluting until uniformity in colour is reached, by which one was apt to dilute too 

 much. The measuring is finished in about two minutes. 



817 T Small Colorimeter with one gauged wedge for blood testing .. .. .. each 



818 T Small Colorimeter with i gauged wedge each for blood testing and sugar in Urine 



819 T Small Colorimeter with i empty wedge with ground-in stopper, to be calibrated by the user 

 for any kind of colorimetric examination, i.e. for the kidney diagnosis according 

 to Rowntree-Garaghthy, Baltimore . . . . . . . . . . each 



We supply the Hyson-Westcotts's fluid for the kidney diagnosis at 5/- per box of 10 ampules 

 of i cc. each. 



820 T Physiological Outfit, consisting of small Colorimeter with i gauged wedge each for Hsema- 

 tine and iron in blood, sugar, creatinin, indican, and uric acid in urine, all parts in velvet- 

 lined, polished wooden case . . . . . . . . . . . . each 



82 1 1 Drinking Water Outfit, consisting of small Colorimeter with i gauged wedge each for 

 ammonia, nitrous acid, iron, and i empty wedge with stopper for any other kind of colori- 

 metric examination, also with light protection device, all parts in velvet-lined, polished 

 wooden case each 



250 

 2 10 



2 



I 



6 15 OJ 

 5 15 



CROSS STREET HATTOTST GARDETST, E-C 



