119 



PROCEEDINGS OF THE SOCIETY. 



MEETING 



Held at 20 Hanover Square, W., December 18th, 1901. 

 W. Carruthers, Esq., F.R.S., President, in the Chair. 



The Minutes of the Meeting of 20th November last were read and 

 confirmed, and were signed by the President. 



The List of Donations to the Society, exclusive of exchanges and 

 reprints received since the last Meeting, was read, and the thanks of 

 the Society were voted to the respective donors. 



From 

 Ward, H. Marshall, Diseases in Plants. (8vo, London, 1901) The Publishers. 

 Soderbaum, H. G., Jac. Berzelius Sjalf biografiska anteck-l I! Acad. R. Suedoise 



ningar. (8 vo, Stockholm, 1901) ) des Sciences. 



Cross and Bevan, Researches on Cellulose, 1895-1900. (8vo,l „„ n „. , 



London, 1901) ..) I^e Publishers. 



Giesenhagen, Dr. K., Die Farngattung Niphobolus. (8vo,\ „,, „ 77 ., 



Jena, 1901) J l»e Publisher. 



Mr. C. Beck exhibited and described a new Micrometer Microscope 

 in which the body was made to traverse across a long stage by means of 

 the rotation of a fine screw, the milled head of which was graduated so 

 as to indicate a movement of T ^ mm. An ingenious arrangement 

 enabled the body to be placed in a horizontal position so that it could be 

 used as a telescope for the measurement of distant objects. 



The President said that this instrument afforded a very simple, but 

 very efficient means of measuring large objects under the Microscope. 



The thanks of the Meeting were voted to Mr. Beck for showing and 

 explaining this instrument. 



The President said they had, through the kindness of Mr. Watson 

 Baker, been provided with an exhibition illustrating the structure and 

 development of the eye, and asked Mr. Baker if he wished to say any- 

 thing in explanation of his exhibit. 



Mr. F. W. Watson Baker said that he had nothing to add to the 

 descriptions given upon the cards placed by each Microscope. His 

 object had been to exhibit the most perfect specimens which could be 

 obtained, and for this purpose most of the best preparers, foreign as 

 •well as British, had been applied to. 



Mr. Yezey was sure that the Fellows of the Society who were present 

 felt very much obliged to Mr. Watson Baker for the great trouble he 



