2 PROCEEDINGS OF THE 



Prof. W. A. Heedman, 1'\E.S., F.L.S., read a paper entitled 

 " Spolia lluriiana : III. Tlie Distribution of certain Diatoms and 

 <Jopepoda in tlie Irisli Sea tliroiighout the Year," and illustrated 

 by photographs and lantern-slides. 



Prof. Dendy, Mr. E. S. Goodrich, Dr. Marie Stopes, and the 

 President contributed to the discussion which followed the reading 

 of the paper, and the Author replied. 



The second paper, "The Germination of Iris Pseudacorus, Linn., 

 in Normal and Abnormal Conditions," was read by Lt.-Col. J. H. 

 TuLL Walsh, I.M.S., E.L.S. (See Abstract on page 51.) 



Mr. Dymes, Dr. A. B. Kendle, the President, and :\Ir. J. C. 

 Shenstone contributed further remarks on the varying experience 

 of the two experimenters. 



November loth, 1917. 



Sir Dayid Peain, C.M.G., CLE., F.E.S., President, 



in the Chair. 



The Minutes of the General Meeting of the 1st November, 1917, 

 were read and confirmed. 



The report of the Donations received since the last meeting was 

 laid before the Fellows, and the tlianks of the Society to the several 

 Donors were ordered. 



Mr. John Lawrence Pitchford Hollingworth was proposed as a 

 Fellow. 



Mr. E. S. GooDEiCH, F.E.S., SecL.S., exhibited a series of 

 slides under microscopes illustrating methods of stainingen)bryonic 

 cartilage. He explained the method of staining with Tohiidiu 

 blue and Thionin blue in bulk and washing the stain out of all the 

 tissues excepting the cartilage. The specimen can then be cleared 

 and mounted in balsam. The best results are obtained with 

 Thionin which stains cartilage deep crimson. Only that variety of 

 Thionin yielding a violet solution in water gives good preparations, 



Mr. AV. Bateson, F.R.S,, addressed a few remarks, which were 

 answered by the exhibitor. 



Dr. D. H. Scott, F.E.S., F.L.S., gave an exposition of his 

 paper, "Notes on Calamojnti/s, L^'nger," illustrating his remarks by 

 a series of lantern-slides and a large specimen of Ccdamopih/s 

 americana, Jeff. & Scott, from Kentucky. 



Dr. E. A. N. Arber and Mr. W. C. AVorsdell spoke on the 

 subject of the paper and the Author replied. 



