— 47— 



A small portion of a plant was then carefully washed in distilled water, until 

 no precipitate appeared with silver nitrate, after which the material was thoroughly 

 dried. The dry portion was pulverized in a perfectly clean mortar and the 

 powder extracted with about 20 times its volume of distilled water, the mixture 

 during the extraction being boiled until about one-half the quantity of liquid 

 remained. This liquid, when filtered, was clear, but gave with silver nitrate an 

 abundant white precipitate, which was much more copious than that obtained 

 in the first experiments. This was taken by Prof. Okamura to indicate the 

 absorption of sea salt by the tissues of the moss plant. 



A quantitative test, which could not be repeated owing to lack of material, 

 was also made. A portion of the plant, weighing 150 mg. when washed and dried 

 as before, was pulverized and extracted with boiling distilled water. The silver 

 chloride resulting, when filtered out and dried, weighed 105 mg., from which 

 Prof. Okamura calculates that about 28% of salt was present in the washed and 

 dried portion of the moss. 



This last result seems rather high in view of the fact that Prof. Okamura 

 could detect no salty taste in the plant itself. But, as is suggested in the article, 

 interesting comparisons are possible with material of Grimmia maritima to see 

 whether it also shows similar evidence of any absorption of salt. 



New York City. 



BRINKMAN'S CANADIAN HEPATICAE 



Caroline Coventry Haynes 



It is with much pleasure that I call attention to the sets of Canadian Hepat- 

 icae offered for sale by Mr. A. H. Brinkman. He is in a land of great plenty, 

 so far as they are concerned, and has collected many of the rarer ones. This 

 set, numbering 1-20, contains the following rare Lophozias: badensis, Halcheri, 

 heterocolpa, Ruiheana, together with Sphenolohus politus and scitulus. If the 

 sets are subscribed for, it is his intention to issue additional species. It is to be 

 hoped that Curators of Museums and private collectors will quickly avail them- 

 selves of the opportunity to obtain such valuable material. 



Highlands, New Jersey. 



NOTICE OF SULLIVANT MOSS SOCIETY MEETING 



The Sullivant Moss Society will hold an all-day meeting on Saturday, May 

 24th, as guests of the Brooklyn Botanic Garden and the Museum of the Brooklyn 

 Institute of Arts and Sciences, at Eastern Parkway, near Flatbush Avenue, 

 Brooklyn. There will be presented an informal program, the time of day and the 

 length depending on circumstances. If the weather is fine one part of the day 

 will be devoted to a walk in the grounds and through the greenhouses, under the 

 guidance of Dr. Gager and Mr. Norman Taylor. 



