150 



January 24th, 1873. — Chairman, Dr. E. Braithwaite, F.L.S., 



President. 



The following Donations to the Club were announced : — 



" The Monthly Microscopical Journal " ... from the Publisher. 



"Science Gossip" ,, ,, 



"The Popular Science Eeview" ,, ,, 



"Proceedings of the Royal Society,'' No.) 



, jQ > 5, the Society. 



"The Lens" in exchange. 



" The American Naturalist " ... ... ,, 



3 Copies of -The tri-daily Bulletin," issued -^ ^^ Brigadier Gen. A. J. 



}" 



Myer. 



from the Chief Signal Office," Wash- 

 ington 



19th Annual Report of the Brighton and^ 



Sussex Natural History Society, and a [■ ,, the Society, 

 catalogue of the books in its Library... ^ 



A paper "On certain Wingless Insects,"") the Author 



by Mr. T. W. Wonfor ) " 



2 Slides — Crystals obtained from the | -^ a i r.-i a i|p„ 



vapour of coke ... ... ... ... 3 " 



24 Slides „ Mr. James Watkins. 



The thanks of the Club were unanimously voted to the donors. 



The following gentlemen were ballotted for and unanimously elected members 

 of the Club :— Mr. Francis Joseph McBride, Mr. James T. Powell. 



Dr. Braithwaite having requested Dr. Matthews to occupy the chair, read a 

 highly interesting paper upon " The Histology of the Plant Cell," being the first 

 of a series of papers upon Plant Organisation. 



Dr. Matthews proposed a vote of thanks to the President for his very admir- 

 able paper, which he felt sure all present must have highly appreciated. The 

 vote was carried by acclamation. 



Mr. T. C. White, in thanking Dr. Braithwaite personally for his elaborate 

 paper, said it was, as its author had observed, but a skeleton of the entire sub- 

 ject, each part of which would be most interesting if worked out, the varieties 

 of cell, Raphides, or Chlorophyl Granules would each form interesting studies. 

 With regard to the latter, he hoped Dr. Braithwaite would be able to give them 

 some information as to how they multiplied by self-division. He remembered 

 to have seen this going on in all stages one evening, uuder one of Messrs. Powell 

 and Lealand's beautiful ^'g-i^ich immersion objectives; he should like to ask if 

 this was the usual way of multiplying. 



Dr. Braithwaite said that it was certainly unusual, although bethought it was 

 very possible, that such a process might take place. He should be very pleased 

 to see the Starch theory, to which he had alluded, further illustrated on some 

 future occasion, 



Mr. Charles Stewart inquired upon what grounds it was supposed that the 

 starch granules really divided ; he thought that the appearances would equally 

 indicate the union of two cells. 



Mr. White said that he had noticed them on the occasion named, in every 

 condition ; some were so nearly divided as to be quite of a dumb-bell shape. 



