PROCEEDINGS OP THE SOCIETY. 173 



Hett, and was made originally to show some diatoms mounted by- 

 Professor Smith. It differed from Hett's original plan, which was 

 only intended for showing opaque objects. He referred to these 

 matters not to impeach the perfect bona fides of anyone, but simply to 

 recall what many were already aware of, that in the course of thirty 

 years a new race of microscopists seemed to rise up who did not 

 know what had been done years before. 



Mr. Curties said that so far as Mr. Teasdale's particular apparatus 

 was concerned, he had by no means brought the matter forward as a 

 new invention, but simply because it carried out the plan that had 

 been discussed in a way which was not only cheap but efficient. 



Professor Hamilton Smith's letter, criticising some remarks in 

 the October number of the Journal (p. 781), was read by Mr. Crisp, 

 together with Mr. Mayall's reply, and Mr. Mayall further explained 

 his contention by means of a drawing upon the board.* 



Professor Kellicott's letter, as to Anuroea longispina recently 

 found in this country by IVIr. Levick, and described in the ' Midland 

 Naturalist,' was read by Mr. Crisp. | 



Mr. Crisp referred to the supposed demise of the French, German, 

 and American Microscopical Journals, and also announced that a new 

 American Monthly Microscopical Journal was about to bo started by 

 Professor Eomyn Hitchcock, one of the Fellows of the Society. 



The following Objects, Apparatus, &c., were exhibited : — 



Mr. Crisp : — (1) K. Beck's revolving object-stage. (2) Microscope 

 on a modification of Hett's plan, with revolving object-holder for 

 transparent objects (see p. 144). (3) Various nosepieces, including 

 new triple and quadruple (aluminium) of Messrs. Beck. (4) Schmidt 

 and Haensch's 'Trichina-Microscope. (5) "Ward's microspectroscopo.J 



Mr. H. Gibbcs : — Spermatozoa of newt in glycerine. 



Mr. G. J. Hinde : — Annelide jaws and conodonts from the Silurian 

 and Devonian, N. America.§ 



Mr. F. H. Ward : — Section of stem of Crescentia Cujete — doablo 

 stained. 



Mr. West : — Tilting or rotating slide. 



* Professor Hamilton Smith points out that in lino 12 of p. 781 " iuk " ehoulJ 

 Ijo .>>ubstitutocI for " iriHtrumont." 

 t See 'Journal,' ii. (187'.>) p. 879. 

 X Ibid., i. (1878) p. 32G. 

 § Ibid., ii. (187'J) p. 881. 



