PROCEEDINGS OF THE SOCIETY. 171 



that way, because the limit of resolution had been nearly reached. 

 He believed that the longitudinal markings were the finest. 



Mr. J. Mayall, jun., said the President had asked if there were any 

 data as to the fineness of the striations. From 95,000 to 105,000 

 seemed to be the estimate in the case of those seen by Dr. Yan Heurck. 

 Mr. Nelson had given special attention to the measurement of the 

 striation, using preparations in every respect similar to those of Dr. 

 Van Heurck ; and these figures represented the limits of the striation 

 of the largest specimens. The measurements had been made in his 

 (Mr. Mayall's) presence. 



The following Instruments, Objects, &c., were exMbited : — 



Prof. Bell : — Acineta grandis S. K. 



Mr. Bolton : — Larval form of " fairy shrimp." 



Mr. Cheshire : — Section of bees, illustrating his paper. 



Dr. J. D. Cox : — Photographs of broken diatom valves. 



Mr. Crisp : — ^^(1) Ward's and Pennock's Eye-shades. (2) Cox's 

 Eadial Microscope. (3) Bausch's Spot-lens Adapter. (4) Mechanical 

 Finger. 



Mr. Dowdeswell : — Cultivation of a SaccJiaromyces. 



Dr. Van Heurck : — Photographs of Amphipleura pellucida and 

 A. Lindheimeri. 



Mr. J. Mayall, jun. : — Modification of Wenham's single plate 

 mechanical stage. 



Mr. Parsons : — Hydroid form of Limnocodium Soioerhii. 



Mr. Eosseter : — Section of Goreihra plumicornis. 



Dr. C. V. Zenger : — Diatoms in his reversible mount. 



New Fellows = — The following were elected Ordinary Fellows : — 

 Messrs. Charles P. Ailing, George Coppin, A, Cowley Malley, B.A., 

 M.B., Frederick E. Mandeville, M.D., George L. MuUins, Charles E. 

 West, D.D., and Mrs. Louisa E. Stowell, M.S. 



Meeting op 14th Januaky, 1885, at King's College, Steand, W.C, 

 THE Pbesident (the Eev. De. Dallingee, F.E.S.) in the 

 Chaie. 



The Minutes of the meeting of 10th December last were read 

 and confirmed, and were signed by the President. 



The List of Donations (exclusive of exchanges and reprints) 



received since the last meeting was submitted, and the thanks of the 



Society given to the donors. 



From 

 Fol, H. — Lehrbuch der Vergleichenden Mikroskopischen 



Anatomie, mit Einschluss der Vergleichenden Histologie 



und Histogenie. Ite Lief,, 208 pp. (84 figs.). 8vo, 



Leipzig, 1884 The Author. 



Diatom aceous Earth from Santa Monica Mr. ff. G. Banks, 



Two photo-negatives of Amphipleura pellucida, and six slides 



of his silvered diatoms Dr. Van Heurck. 



Slide of A. pellucida silvered Br. A. Y. Moore. 



