TO OUR READERS AND CORRESPONDENTS. 



We have received several communications upon the Supply of Water 

 to the Metropolis, which will be noticed in due season. Mr. Philipson's 

 plan has also been received, but we are certain that no source but the 

 Thames can be safely resorted to. We quite agree with " an Old Sub- 

 scriber " respecting the carelessness with which the basin in the Green 

 Park appears to be treated, but the story of the infusion of dead bodies 

 is exaggerated. 



Filtration must lessen the evil, and therefore is an improvement. 



The copy of " Berzelius " has reached us, for which we are much 

 obliged. 



A communication from Glasgow reached us too late for the present 

 number. 



W r e have received two " additional letters " upon the subject of burials 

 in the streets of London ; but as it scarcely comes within our province, we 

 ^cannot see the use of disgusting our readers with the " narrative." 



We are always happy to be corrected by F.R.S., but cannot take up 

 the subject he alludes to, after the trash that has been published. 



It was erroneously stated in our last number, that Dr. Marshall Hall 

 had been anticipated in his views on the Mechanism of Vomiting by 

 M. Richerand. Those of our readers who are interested in this question, 

 will be satisfied of the correctness of our present statement by referring 

 to the Medical Gazette, No. 56, for December the 27th, 1828, p. 127 ; 

 and No. 58, for January the 10th, 1829, p. 189. 



In the Press. 



A MANUAL of CHEMISTRY, containing all recent Discoveries, 

 in Two Vols. 8vo., with Plates and Woodcuts. 



By W. T. BRANDE, F.R.S., Prof. Chem. R. I. 



