Monthly Microscopical 
J pana Sept. 1, 1870. ( 17 1 ) 
CORRESPONDENCE. 
Dr. Picotr snp Mr. WENHAM. 
To the Editor of the ‘ Monthly Microscopical Journal. 
AsHDOWN CorTaGe, Forrest Row, Sussex, 
July 21, 1870. 
Dear Sir,—I am sorry to find, from Mr. Wenham’s letter in your 
last number (July), that I helped to mislead him concerning Dr. 
Pigott’s experiments, by speaking of the microscope being converted 
into a telescope. I did not mean used as a telescope, but as’ Dr. 
Pigott’s method is explained in the ‘ Proceedings of the Royal Society,’ 
to which you have referred, I need not now say more on this subject. 
I hope Mr. Wenham will before long have an opportunity of 
fully testing Dr. Pigott’s statements concerning aberration, as if he, 
Mr. Wenham, is once convinced that any mischievous amount of error 
exists in our best objectives, his remarkable practical skill will be 
immediately directed to the best method of cure. He is of all men 
the most likely to be successful in this difficult matter. 
I remain, dear Sir, 
Yours faithfully, 
Henry J. SLACK. 
PROCEEDINGS OF SOCIETIES.* 
QureKerr Microscopican Cxius.t 
The annual meeting was held at University College, July 22nd, 
1870, P. Le Neve Foster, Esq., M.A., President, in the chair. The 
fifth annual report, read by the Secretary, warmly congratulated the 
members upon the continued success and usefulness of the club, 
whose members now exceeded 500, 57 having joined during the year. 
The cabinets contained upwards of 1300 slides, and important addi- 
tions had been made to the library. Especial reference was made to 
the courtesy and kindness of the authorities of University College, by 
whose permission the meetings of the club were held in that building. 
The Treasurer’s report showed a balance in hand of 26/. 9s., and 
the report of the Librarian detailed the additions made in his depart- 
* Secretaries of Societies will greatly oblige us by writing their reports legibly 
—especially by printing the technical terms thus: Hyd ra—and by “underlining” 
words, such as specific names, which must be printed in italics. They will thus 
secure accuracy and enhance the value of their proceedings.—Ep. M. M. J. 
+ Report furnished by Mr. R. T. Lewis. 
