THE 
(Established in 1839. Incorporated .by Royal Charter in 1866.) 
The Society was established for the promotion of Microscopical and 
Biological Science by the communication, discussion and publication of observa- 
tions and discoveries relating to (1) improvements in the construction and 
mode of application of the Microscope, or (2) Biological or other subjects of 
Microscopical Research. 
It consists of Ordinary, Honorary, and Ex-officio Fellows, without distinction 
of sex. 
Ordinary Fellows are elected on a Certificate of Recommendation, 
signed by three Ordinary Fellows, setting forth the names, residence, and 
description of the Candidate, of whom the first proposer must have personal 
knowledge. The Certificate is read at two General Meetings, and the Candidate 
balloted for at the second Meeting. 
The Admission Fee is £2 2s., and the Annual Subscription £2 2-s., payable 
on election, and subsequently in advance on 1st January annually, but 
future payments may be compounded for at any time for £31 10s. Fellows 
elected at a meeting subsequent to that in February are only called upon for a 
proportionate part of the first year’s subscription, and Fellows permanently 
residing abroad are exempt from one-fourth of the annual subscription. 
Honorary Fellows (limited to 50), consisting of persons eminent in 
Microscopical or Biological Science, are elected on the recommendation of five 
Ordinary Fellows and the approval of the Council. 
Ex-officio Fellows (limited to 100) consisting of the Presidents for the 
time being of any Societies having objects in whole or in part similar to those of 
the Society, are elected on the recommendation of ten Ordinary Fellows, and the 
approval of the Council. 
The Council, in whom the management of the property and affairs of 
the Society is vested, is elected annually, and is composed of the President, 
four Vice-Presidents, Treasurer, two Secretaries, and twelve other Ordinary 
Fellows. 
The Meetings are held on the third Wednesday in each month from 
October to June, at 20, Hanover Square, W. (commencing at 8 p.m.). Visitors 
are admitted by the introduction of Fellows. 
In each Session two additional evenings are devoted to the exhibition of 
Instruments, Apparatus, and Objects of novelty or interest relating to the 
Microscope or the subjects of Microscopical Research. 
The Journal, containing the Transactions and Proceedings of the 
Society, and a Summary of Current Researches relating to Zoology and Botany 
(principally Invertebrata and Cryptogamia), Microscopy, &c., is published 
bi-monthly, and is forwarded post-free to all Ordinary and Ex-officio Fellows 
residing in countries within the Postal Union. 
The Library, with the Instruments, Apparatus, and Cabinet of Objects, 
is open for the use of Fellows daily (except Saturdays) from 10 a.m. to 5 p.m. 
It is closed for four weeks during August and September. 
Forms of proposal for Fellowship , and any further information , may he obtained by 
application to the Secretaries , or Assistant- Secretary, at the Library of the Society, 20 , Hanover 
Square, W. 
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