Lately published, by the author of Ornithologia, (price 2s. 6J.) 

 AN INQUIRY 



CONCKRNING THB 



NATURE AND OPERATIONS 



OF THE 



IN WHICH " 



THE SCIENCE OF PHRENOLOGY, THE DOCTRINE OF NECESSITY, 

 PUNISHMENT, AND EDUCATION, ARE PARTICULARLY 

 CONSIDERED. 



(A Lecture delivered at the Mechanics' Institution, London.) 



WITH NUMEROUS CORECTIONS, ADDITIONS, AND NOTES. 



" Altogether the work is one of great research, and well merits 

 the attention of the public." — West of England Magazine* 



"In this inquiry there are many things, especially those which 

 show the fallacy of metaphysical notions concerning the mind, 

 which deserve attention. Of course the same principle per- 

 vades this inquiry as does all others of the kind and party to 

 which Mr. Jennings belongs ; viz. that every thing old and esta- 

 blished must be bad, and every thing new and innovating good." 

 Gintleman's Magazine, 



While the author admits that the Gentleman* $ Magazuie 

 is one of the few honourable exceptions to the trashy lite- 

 rature of the day, he regrets that sentiments should be, in 

 that publication, attributed to him which can be no where 

 found in his writings. So far is the author from thinking 

 that every thing new and innovating is good, he thinks 

 much of what is new and innovating is had', as he does 

 also much of what is old. As useful knowledge consists in a 

 record of facts and of existences, and deductions from them 



