TO OUR READERS AND CORRESPONDENTS. 
We are much obliged by Cantab’s letter, and will look more sharply into 
those matters in future. 
At page 345, line 12, of our last volume, for “ invariably,” vad ** in= 
versely.” Hy 8 
** An old Subscriber,” who accuses us of “ puffing,” had better not 
stir the subject of his letter, least we should communicate information 
which might be very disagreeable to some of the gentlemen whose cause 
we presume he intends to advocate. No person or thing has ever been 
puffed in this Journal. 
The suggestions of ‘* Medicus” respecting the New Pharmacopeia, 
shall be attended to. 
Sir George Mackenzie's paper has duly reached us ; we regret that want 
of room obliges us to postpone its publication. 
The article on the Mechanic's Institution is too long for insertion. 
We are sorry again to postpone our Correspondent y- A. 
"The letter dated ‘* Glasgow, March 1,” shall have due consideration. 
Among Miscellaneous Intelligence our readers will find much that 
should have been placed under the head of Foreign Science. 
We have received many communications and inquiries respecting the 
Royal Institution, and feel much obliged for the facts which several of them 
contain. The Visiter's Report will shortly be laid before the Members, 
and will probably include the information sought for by some of our Cor- 
respondents ; if not, they shall be replied to in our next. 
The observations of F. R. S,, and those contained in-a letter dated 
‘«* Kensington,” and in another signed ‘ Amicus Justitie,” are extrerhely 
pertinent and judicious, but we feel disinclined to enter into the subjects 
they touch upon if we can possibly avoid it. 
‘The parcel from Manchester has just arrived. (March 29.) 
Preparing for Publication, in 1 Vol. Svo., 
A MANUAL OF PHARMACY. By W. T. Branoz, F.R.S, &c. 
