BRITISH ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE, 
22 ALBEMARLE STREET, LONDON, W. 
The next ANNUAL GENERAL MEETING will be held at SOUTHPORT, 
commencing on WEDNESDAY, September 19. 
President-Elect, 
ARTHUR CAYLEY, Esq., M.A., LL.D., F.R.S., V.P.R.A.S., Sadlerian 
Professor of Mathematics in the University of Cambridge. 
Notice to Contributors of Memoirs. — Authors are reminded that, under an 
arrangement dating froru 1871, the acceptance of Memoirs, and the days on which 
they are to be read, are now, as far as possible, determined by Organizing Commit- 
tees for the several Sections before the beginning of the Meeting. It has therefore 
become necessary, in order to give an opportunity to the Committees of doing 
justice to the several Communications, that each Author should prepare before- 
hand an Abstract of his Memoir, of a length suitable for insertion in the pub- 
lished Transactions of the Association, and the Council request that he will send 
it, together with the original Memoir, by book-post, on or before August 22, 
addressed thus : — " General Secretaries, British Association, 22 Albemarle Street, 
London, W. For Section " Authors who comply with this request, 
aud whose Papers are accepted, will be furnished before the Meeting with printed 
copies of their Reports or Abstracts. If it should be inconvenient to the Author 
that his Paper should be read on any particular days, he is requested to send 
information thereof to the Seceetabies in a separate note. 
T. G. BONNEY, Secretary. 
TIME BY THE TRANSIT INSTRUMENT. 
Cloth, 8vo, 5s., post free. 
A TREATISE ON THE TRANSIT INSTRUMENT, 
By LATIMER CLARK. 
Cloth, 8vo, 2s. Qd. 
TRANSIT TABLES, 
Published annually ; giving the Transit of twenty of the principal Stars for every 
Evening in the year. Computed from the Nautical Almanac in ordinary time. 
Intended for Popular use in every part of the Globe. 
By LATIMER CLARK. 
TRANSIT INSTRUMENT 
of Improved Form and of the Highest Quality, complete with Lamp &c. 12 inch, 
£9 17s. Qd. ; 8 inch, £13 10s. These instruments will be sent on approval if 
desired. 
A. J. FROST, 6 Westminster Chambers, London, S.W. 
Royal 4to, cloth boards, price £1. 
FACTOR TABLE FOR THE FIFTH MILLION, 
CONTAINING THE 
LEAST FACTOR OF EVERY NUMBER NOT DIVISIBLE BY 2, 3, or 5, 
BETWEEN 
4,000,000 and 5,000,000. 
By JAMES GLAISHER, F.R.S. 
Uniform with the above, 
FACTOR TABLE FOR THE FOURTH MILLION, 
Price £1. 
Taylor and Fbancis, Red Lion Court, Fleet Street, E.C. 
[ADVERTISEMENTS continued on 3rd page of Cover. 
