Journal of the Royal Microscopical Society

f A,./^ 'vA^ -^ '•?>f > . vV; --.i -*« ..,-5>- ' »•'Ll * iX\'^ "MM-:. .; -»/^^*> ^W^f^'^ dx' t»y-«ofJournal tbe Ropal microscopical Societp CONTAINING ITS TRANSACTIONS AND PROCEEDINGS AND A SUMMARY OF CURRENT RESEARCHES RELAITNG TO (principally Invertebrata and Cryptogamia) iva:iGi^oscoi=»^5r. sca. EDITED BY R. HEBB, M.A. M.D.G. F.R.C.P. WITH THK ASSISTANCK OF THE PUBLICATION CoMMniEE ANO F.R.S.E.J. ARTHUR THOMSON, M.A. A. N. DISNEY, M.A. B.Sc. Natural History iti theRe^'us Professor of University ofAberdeeti FEIXOWS OF THE SOCIETY AND B.A. RENDLE, M.A. D.Sc. F.R.S. F.L.S. Keeper, Depa>-t»ient Botany,of British Museum G.HAROLD MOORE. B.Sc. H. K. MACALISTER, M.A, M.D. (Cantab.) IVootwic/i Arsenal Assistant Bacterio'ogist Lister Institute Minimis partibus, per totum Naturae campum, certitutio omnis innititur quas qui fugit pariter Naturam h\g\\.~Liiinmis. FOR THE YEAR 1912 TO BE OBTAINED AT THE ROOMSSOCIETY'S 20 HANOVER VV.SQUARE, LOND(JN, OF Messrs. WILLIAMS & NORGATE, 14 Henrietta Street, London, W.C. AND OF Messrs. DULAU & CO., Soho Square, London, W.37Extra and informal Meetings 4tliare held on the 1st and Wednesday evenings of the month. These Meetings devotedare :to (1) Biology, Bacteriology, and Histology Microscopical— (2); Optics and Microsope Construction. 16-]THE 3i0||al Sflicpscanical ^wct^tji. Established in 1839. Incorporated by Royal Charter in 1866, The Society established for tlie promotion of Microsco]ncal andwas Biological Science by the coraraunication, discussion,and publication of observa- tions discoveries to improvements in the construction andand relatins; (1) or othermode of application of the Microscope, or Biological subjects of(2) Microscopical Research. It consists of Ordinai'y, Honorary, and Ex-officio Fellows of either sex. FellowsOrdinary are elected on a Certiiicate of Recommendation signed by tlu'ce Ordinary Fellows, setting forth the names, residence, and have personaldescription of the Candidate, of whom the first propo.ser must knowledge. The certificate is read at two General Meetings, and the Candidate balloted for at the second Meeting. 2.s.,The Admission Fee is 2/. 2.s. ; and the Annual Subscription 2/. pay- able 1st January annually. Theon election, and subsequently in advance on Annual Subscriptionsmay be compounded for at any time for 81/. 10s. Fellows that only called upon forelected at a meeting subsequent to in February are a projiortionate part of the first year's subscription. The annual Subscrip- tion permanently residing abroad is 1/. lis. Qd. reduction ofof Fellows or a one-fourth. Honorary Fellows (limited to consisting of persons eminent in50), Microscopical or Biological Science, are elected on the recommendation of five Ordinary Fellows and the approval of the Council. Ex-officio Fellows (limited to IpO), consisting of the Presidents for the time being ofany Societies having objects in^whole or in part similar to those of the Society, are elected on the (recommendation of ten )rdinary 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 mouth, from October to June, at 20 Hanover Square, W. (commencing at 8 p.m.). Visitors are admitted by the introduction of Fellows. (See preceding page.) 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, Ac, 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 Fellowship, and anyfor further information, may be obtained by application to the Secretaries, or Assistant-Secretary, the Library the Society,at of 20 Hanover Square, W. 2apatron HIS MAJESTY THE KING. ^ast-^restbents. Elected *Sm Richard Owen, K.C.B. D.C.L. M.H. LL.D. F.R.S. 1840-1 *JOHN LiNDLEY, Ph.D. F.R.S 184:2-P. Bell, F.R.S 1844-5Thomas * Jajvies Scott Bowerbank, LL.D. F.R.S 1846-7 *George Busk, F.R.S 1848-9 M.D. F.R.SArthur Farre, 1850-1 *riEORGE Jackson, M.R.C.S 1852-?, •William Benjamin Carpenter, C.B. M.D. LL.D. F.R.S. 1854-5 1856-7*(tEORGE Shadbolt *Edwin Lankester, M.D. LL.D. F.R.S 1858-9 *John Thomas Quekett, F.R.S I860 Robert Farrants, F.R.C.S 1861-2James Charles Brooke, M.A. F.R.S 186?>-4 1865-6-7-8James Glaisher, F.R.S Rev. Joseph Bancroft Reade, M.A. F.R.S 1869-70 William Kitchen Parker, F.R.S 1871-2 Charles Brooke, M.A. F.R.S 1873-4 Henry Clifton LL.D. F.R.SSorby, 1875-6-7 James Slack, F.G.S 1878 Lionel S. Beale, M.B. F.R.C.P. F.R.S 1879-80 Peter Martin M.B. F.R.SDuncan, 1881-2-3 Rev. William Hy. Dallinger, M.A. LL.D. F.R.S. 1884-5-6-7 Charles Thos. Hudson, M.A. LL.D. (Cantab.), F.R.S. 1SS8-9-90 Robert Braithwaite, M.D. M.R.C.S 1891-2 Albert D. Michael, F.L.S 1893-4-5-6 Edward Milles Nelson 1897-8-9 *William Carruthers, F.R.S. F.L.S. F.G.S 1900-1 Henry Woodward, LL.D. F.R.S. F.G.S. F.Z.S 1902-3 DuKiNFiELD Hy. Scott, M.A. Ph.D. LL.D. F.R.S. F.L.S. 1904-5-6 The Right Hon. Lord Avebury, P.C. D.C.L. LL.D. F.R.S., etc 1907-8 Sir Edwin Ray Lankester, K.C.B. M.A. LL.D. F.R.S. F.L.S. F.Z.S 1909 i. Arthur Thomson, M.A. F.R.S.E I'jlO * Deceased.