TO THE READER. 



The time has now come for us to present our good friends,, the 

 Public, with our collected Thoughts of the last Six Months. If they expe- 

 rience only one-half the pleasure in reading, that we have felt whilst 

 writing, — our object will have been fully attained. So much, as regards 

 ourselves. 



We need add nothing further, — excepting indeed a hearty acknow- 

 ledgment of the kind offices rendered us by our literary friends and allies 

 in the paths of Science. We owe them a heavy debt of gratitude for 

 favors received, and for their having cheered us on by the way. Many 

 have been our besetting difficulties ; but by their aid, we have survived 

 them all. 



Let us solicit a continuance of the same friendly offices ; then shall 

 we again appear in December-c-and with a still more interesting Volume, 

 perhaps, than the present. 



WILLIAM KIDD. 



New Road, Hammersmith, 

 July 1st, 1852. 



