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THE NEW YORK JOURNAL OF PHARMACY 



former by 1.75 and subtracting^ this 

 from the percentages of the latter. 



In the following tables are given the 

 chemical data as percentages. 



1 Analyzed on the day when the samples were put up. 



2 The Letter A indicates acidic or neutral reaction; B indicates alkaline reaction. 



3 The numbers in the headings of these tables indicate days. 



4 The days of this column refer to the columns of phosphates, glucose, uric acid and ammonia. The 

 days of preservation of others are given in the respective columns. 



Table II. 



(Jrams per Glucosa Picrate Uric acid Ammonia Urea Urea corr. Creatinine 



No Preservative 600 cc. Litmus. 2 'iO.3 20.3 163.3 28.3 67.3 67,3 99.3 



Nonel A 4.545 1.710 0.648 



^fone A 4.166 ... 0080 0.0956 1.635 1.468 0.623 



i Salicylic" acid."..'. 1 A 4 546 5.5 0.0134 0.0306 1.649 1.596 0.628 



2 Chloroform....." 9 A 4.706* 6.0* 0.0246 0.0308 1.7:30 1.676 0.487 



3 Thymol 1 A 4.420 5.5 0.0190 0.0242 1.700 1.658 0.575 



4 Boric acid'."" 1 A 4.255 5.7 0.0125 0325 1.643 1.586 0.506 



5 Ether 16 A 4.469 5.1 0.0160 0.0319 1.744 1.688 0.566 



11 Sod. arsenite.' ].!!'..!.... 1 A 4.445 52 0.2200 0.0356 1.643 1.581 0.623 



13 Sod borate ' " 1 A 4.211 5.4 0.0125 0.0343 1610 1.530 0.416 



13 Strychnine Hz'soi 1 B 4.520 5.2 0.0040- 0.0220 1.627 1.589 529 



14 Sulfuric acid 4 A 4.020 6.0* 0.0030— 0.0345 L.ieO l.EOO 0.625* 



14 Sulfuric acid!!.'.' 18 A 4.082 5.8 0.0020- 0.0241 1.287 1.245 0.000* 



15 Poenol.- 1 A 4.494 7.0* 0.0130 0.0355 1.600 1.538 0.675* 



16 Gallic acid*.*.".'.'.".! 1 A 4.706* 6 2* 0.0620 0.0310 1.632 1.578 



17 Sandalwood oil 1 A 4.566 55 0.0225 0.506 



1 Analyzed on the day when the samples were put up. 



2 The letter A indicates acidic or neutral reaction; B indicates alkaline reaction. 



3 The numbers in the headings of these tables indicate days. 



Though some of these methods are (3) estimates of the respective pre- 



known to be somewhat inaccurate, for servatives. 



our purposes, being rapid and applied Abnormal Indications. — The most 



under the same conditions, they give important abnormal indications are 



valuable and comparable data. such as are produced on the analytical 



Observations drawn from the above data by the preservatives themselves. 



tables of data are made upon (i) ab- These are marked in the tables with 



normal indications, (2) effects upon the asterisk, at least those that are 



the respective components of urine and very apparent and whose causes arc 



