596 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



the organism from excessive oxidation, and also allows of 

 sufficient accumulation of oxidizable material to enable the 

 organism to manifest its normal functional activity through- 

 out a succeeding rhythmic period. Detroit Review of Med- 

 icine and Pharmacy, 1872, 494. 



ARSENIC IN CARPETS. 



It is well known that the green, as also some other tints 

 of paj)er-hangings, contain more or less arsenic, sometimes in 

 a quantity sufficient to produce serious injury to health. It 

 is now known that both the green and the red coloring mat- 

 ter of certain carpets contain arsenic, especially the brilliant 

 dark reds now so fashionable. Samples of these carpets be- 

 ing experimented on, burned with the blue arsenic flame and 

 gave off the characteristic garlic odor. Enough color to 

 give a distinct arsenic reaction could be rubbed off with the 

 linger. A solution in hydrochloric acid produced with cop- 

 per the usual grayish precipitate of metallic arsenic. 3 A^ 

 4pn7 6,1872, 287. 



