254 



Professor W. C. Williamson, F.R.S., gave an address " On 

 the Mineralization of the Minnte Tissues of Animals and 

 Plants." 



Dr. Dallinger having to retire before the termination of 

 Professor Williamson's address, the Chair was taken by Pro- 

 fessor LowNK, F.R.C.S., Vice-President. 



Professor Lowne said — I have listened to the lecture just con- 

 cluded with the deepest interest, and I do not think we have 

 ever heard anything more interesting in this room. Though 

 the subject is out of my own line, it is of such importance that 

 I am surprised, in a society like this, it is not more taken up. 

 I suppose the main reason is because it is difficult to prepare 

 sections of these mineralized tissues. It would be very con- 

 venient if it were possible to invent a microtome for the purpose, 

 although, of course, this is out of the question. I am sure you 

 will all desire a very hearty vote of thanks to Professor 

 Williamson for having come here and given us such a valuable 

 discourse. 



The vote of thanks was carried with acclamation. 



A very extensive series of preparations were exhibited by 

 Professor Williamson in illustration of his lecture. 



The Secretary said — We have decided, at the committee meet- 

 ing this evening, to alter the date of the publication of the 

 Journal from January and Jnly to March and October. By the 

 former arrangement the matter was divided into two unequal 

 parts on account of the vacation, but now we shall have two 

 equal ones of five months and the March number will take in 

 the President's address and the business of annual meeting 

 generally. It will possess the further convenience of having 

 the list of Excursions before they begin, w^hereas formerly they 

 were mostly over before the July number appeared. The com- 

 mittee have also decided to raise the price of it to non-members 

 to 3s. 6d. per number, as at present the cost price, with the 

 charges and commission for sale and publication, is such that 

 we are positively out of pocket by it. 



The usual announcement of meetings for the ensuing month 

 was then made, and the proceedings terminated. 



The following objects were exhibited: — 

 Anurcpa curvicornis ... ... ... Mr. W. Andrew. ' 



Lophopus crystallina ... ... ... Mr. W. Burton. 



