M. MATERIA MEDICA, THERAPEUTICS, AND HYGIENE. 561 



est indication of irritation. When the man was apparently- 

 dying, an injection of two drams of ammonia was made in 

 the veins of the arm, with the most promising effect. Sensi- 

 bility returned, and the patient was able to sit up and talk 

 for live hours. The next day, however, he died, apparently 

 from congestion of the brain ; but it was thought that if his 

 habits had not been so intemperate he probably would have 

 entirely recovered from the effects of the chloroform. 20 A y 

 May 27,607. 



VARYING EFFECT OF POISONS ON DIFFERENT ANIMALS. 



It is a well-known fact that what is poisonous to one ani- 

 mal may be taken by another with entire impunity. In 

 illustration of this proposition, we are informed that strych- 

 nine, so fatal to most animals, may be eaten by certain spe- 

 cies of monkeys with perfect safety. In the case of an East 

 India monkey known as the Lungoor {Presbytis entettus), one 

 grain was first concealed in a piece of cucumber, which was 

 eaten by the animal with no apparent effect. Three grains 

 were afterward given, and with the same result. To test 

 the strychnine used, three grains were administered to a dog, 

 which proved almost immediately fatal. Another Indian mon- 

 key, known as the pouch-cheek monkey, has been found to 

 be more susceptible than the Lungoor, but not so much so as 

 the dog. 



It is also stated that pigeons can take opium in large quan- 

 tities with no injurious consequence; goats, tobacco; and rab- 

 bits, belladonna, stramonium, and hyoscyamus. 14^4, June 



15,570; July 2,6,1870. 







PRESCRIBED DYES FOR CANDIES. 



A police regulation has been recently established in some 

 parts of Germany prescribing the substances that may be 

 used for coloring candies and other edible articles. The va- 

 riety is very great, and would seem to meet all necessary 

 requirements. All the aniline colors, without exception, are 

 prohibited. 6 (7, February 16,66. 



CORROSION OF LEAD PIPES. 



Most of us are aware of the danger incurred by the use of 

 water which has passed through lead pipes, especially after 



A a 2 



