— 159 — 



The acid is isolated by precipitating the urine with acetate of lead 

 and diluting the filtrate with ammonia and acetate of lead, when the basic 

 lead salt of hydroxycineol glucuronic acid is deposited in the form of a 

 white precipitate. The brucine salt melts between 186 and 191°, with 

 elimination of gas. If the acid is oxidised with permanganate of potassium 

 at 90°, cineolic acid results. 



Pommier 1 ) describes a simple apparatus for measuring the degree of 

 intensity of the odour of perfumes. In order to be in a position always 

 to measure off the same quantity of a liquid the author prepared two 

 capillary pipettes, by drawing out a glass-tube of about 2 mm. thickness. 

 The capillaries of the pipettes have a length of from 8 to 10 cm. and 

 are graduated with glass -ink. When a sample is drawn the liquid is 

 allowed to rise always to the same height in the capillary. Equal quanti- 

 ties are then taken of the odoriferous body to be tested and of the material 

 for comparison and allowed to drop into a test-tube containing the diluent. 

 Strips of filtering-paper of equal size are then dipped into the test-tubes 

 and at once withdrawn. The degree of intensity of odour of two perfumes 

 may thus be compared. 



It is advisable to fix the filtering paper firmly into a clip which moves 

 upon a calibrated rail. A scent-funnel is affixed to the rail, and the clip 

 holding the strip of paper is moved backwards and forwards until the 

 scent is noticeable in the funnel. The degree of intensity of the odour 

 of the body under examination is proportionate to the distance of the 

 strip from the funnel. Pommier's article contains a sketch of the apparatus. 



On the use of eucalyptus oil as a prophylactic against scarlatina, see p. 73. 



For a case of poisoning by Clove Oil, see p. 54. 



On the use of Niaouli Oil as a remedy in helminthiasis, see p. 83. 



On the addition of Niaouli Oil to tincture of iodine, see p. 83. 



On the bactericidal value of thymol, see p. 143. ■ 



On the pharmacological action of carvacrol phthaleine, see p. 137. 



On the action of Xanthotoxin as a fish-poison, see p. 73. 



Phytophysiological Notes. 



Continuing his previous investigations, to which we referred in our 

 Report of April 1910 2 ), E. Heckel 3 ) has examined the effect of cold and 



x ) Parfum. moderne 3 (1910), 110. 



8 ) Report April 1910, 161. 



*) Compt. rend. 151 (1910), 128. 



