410 O N O P I U M. 



fpina canal; and in a minute or two, he appeared com- 

 pletely dead. 



Convulfions produced by zinc and filver were fiill ftrong. 

 The heart on expoiing it to view was pulfating moderately 

 42 times in a minute. 



Experiment 39. 



At 30 minutes paft 4, I injedled a few drops of the above 

 tinfture A. into the ftomach of a young frog; which cauf- 

 edit to ^^^, and a confiderable portion was rejedled. In 

 <; miimtes he remained under the receiver pretty quiet ; 

 though before this he had been ftriving violently to el'cape. 

 When touched he did not jump, but lay in the pofition in 

 which he was placed. Ten minutes before 5 o'clock, his 

 refpiration was quick, being 66 times in a minute. His 

 hind legs were moved with difficulty, and he lay with his 

 head upon the table. 



At 5 minutes paft 5 he began to move about, and Teemed 

 to have recovered confiderably. Bufmefs now calling me 

 away, 1 put him into the water. At 10 o'clock he was 

 very a6tive and vigorous, and continued fo till 1 threw him 

 out fome days after. 



The following veiy interefting experiments, were made 

 at my requeft at the Pennfylvania Hofpital by my veiy in- 

 genious and worthy friend Dr. Samuel Cooper, to whofe 

 kindnefs I am much indebted. 



" Jeremiah Smith, 34 years old; pulfe beating 96 ftrokes 

 in a minute, took 30 drops of the lettuce laudanum, (A. 

 experiment 7.) 



In min. | 1 | 5 I 1° I IJ I ^o I ^5 I 3° I 35 I 4" I 45 I 55 | 60 | 70 | 80 | 

 Pulfc beat j 96 I 96 I 94 I 95 I 98 I 98 I 100 I loi I 100 I loi | loi | 103 | 102 | 102 | 



His face was now evidently fluflied, and his fkin was warm- 

 er. He faid that he felt very agreeable. His pulfe feemed 

 increafed in force as well as frequency." 



" Upoa 



