10 THE MICROSCOPE. Jan. 



Dr. Cutter said that Mr. Tolles was three years constructing 

 the lens for Dr. Harriraan, who paid $400 for it. After he had 

 solved the problem on which he was working, Dr. Harriman 

 sold the objective to Dr. Cutter. Mr. Dalton who assisted Dr. 

 Cutter, was Mr. Tolles' partner and succeeded to the business 

 after Mr. Tolles' death. 



At the business meeting of the association, George H.Lloyd 

 resigned the office of treasurer, as he expects to go South for 

 the winter, and A. H. Martin, of Boston, was chosen to suc- 

 ceed him. J. E. Whiting of Andover, Mass., and Frank and 

 Carlos Huckins, of Ashland, N. H., were elected members. 



The committee on the Tolles Memorial reported favorable 

 progress, stating that some money had been collected. It was 

 announced that Dr. Williams, of Boston, would speak at the 

 next meeting of the association. Dr. Cutter offered to give in 

 Boston a public exhibition of views taken with his objective, 

 the proceeds to be devoted to the Tolles Memorial Fund. 



The treasurer of the Tolles Monument Fund reports that he 

 has received^$100 up to Dec. 1. 



A. J. Landry 

 W. R. Donovan 



E. M. Parks .... 

 Charles A. French 

 Dr. George B. Harriman 

 W. G. Corthell .... 



F. H. Blackington 

 John W. Sanborn 



A. G. Barber . . , . 

 Geo. H. Lloyd . . 

 E. G. Worth ley 

 R. H. Wigler 



B. V. Howe, Treasurer. 



$1.00 

 2.00 

 2.00 

 5.00 



10.00 

 LOO 

 2.00 



10.00 

 5.00 



10.00 

 1.00 

 1.00 



Staining Milk Vessels of Plants. — Chimani (Archiv 

 Pharm.) finds a combination of alkanin and acetic acid very 

 serviceable for differentiating the sieve-tubes and tannin 

 sheaths. He extracts extract of alkanet with ether, dispels the 

 ether, treats the residue with 45-per cent glacial acetic acid, and 

 lastly, slightly concentrates the resulting acetic acid alkanin 

 solution by evaporation on the water-batli. Tliis stain acts both 

 on dry and fresh plant parts. 



