278 French National Institute. 



facts which he has brought together, and the aaaloaics 

 which, from the evidence of experiment, he has endeavoured 

 to trace among them, may direct the attention of future in- 

 quirers to a more comprehensive view of the sii!)ject than 

 has yet been taken, and impart a new degree of inierest and 

 utility to the research. The attempt also to combine the 

 demonstrations of anatomy with the chemical pha;nomena 

 which we observe, and to consider both in connection and 

 subservience to the laws which characterize living beings, 

 will, he trusts, meet \v\i\\ the approbation of physiolo- 

 gists, and tend to reduce within proper limits the applica- 

 tion of chemistry to this science." In a word, we hazard 

 nothing in saying that this is one of the most perfect ana- 

 lytical treatises that have appeared in modern days ; that 

 the author's style is nervous, concise, and conspicuous ; and 

 that with a complete knowledge of his Subject, his induc- 

 tive arrangement of experiments and facts is well calculated 

 to establish a conviction of their accuracy and truth, and in- 

 spire respect for this fascinating but difficult branch of che- 

 mical science. We would recommend the author to add 

 the dates to the experiments he has quoted, in his next edi- 

 tion, and thus present his readers with a brief but faithful 

 historical view of the progress of the human mind in this in- 

 teresting department of experimental pliilosophy. 



XXXVIII. Proceedings of Learned Societies. 



FRENXH NATIONAL INSTITUTE. 



X HE following prize questions have been announced by 

 the above learned body : 



*' A great number of substances give outy in different cir- 

 cumstances, a phosphorescent light, more or less lively, and 

 jDore or less durable : such as the fluate of lime, and some 

 varieties of plusphate of lime, when we throw them in 

 powder upon a heated bodv; the Bolognian phosphorus, 

 when, after having been exposed to the light, it is carried 

 into a dark place 3 certain sulphurets of zinc, when rubbed 



witU 



