— i6 — 



may be gauged quite accurately and surprisingly thin sections may be obtained. 

 It is much better to use the pith in such a manner that the cuts through it will 

 be made with the grain (longitudinally), hence the instructions above to prepare 

 the pith by cutting it into disks, crosswise. It is best to dip the blade in water 

 before starting to cut a series of sections, as the sections will then remain on the 

 damp surface of the blade until you are through with the operation. If the blade 

 is used dry the sections will likely be blown away by your breath, unless, as with 

 some workers, steadiness of hands is attained by holding the breath during such 

 an operation. We have had no difficulty in getting sections of Catharinaea of 

 a minimum of two cells in thickness by this method, although at this minimum 

 thickness most of the lamellae were more or less torn. 



O. E. J. 



SULLIVANT MOSS SOCIETY NOTES 



The following new members have been added to our rolls since the last note 

 was published in the September, 1916, number: 



Mr. A. T. Deals 71 West 23rd St., New York City 



Mr. E. R. Grose Glenville, W. Va. 



Mrs. J. Kincaid Russiaville, Ind. 



Miss Myrtle H. Lewis Rockwell Ave., Naugatuck, Conn. 



Mrs. Frank E. Lowe 24 Brattle St., Worcester, Mass. 



Mr. Ralph S. Nanz Dept. Plant Pathology, New York State College, 



Ithaca, N. Y. 



Mrs. Mary Adam Noble Inverness, Florida 



Dr. Wm. H. Wiegman 436 East 5th St., New York City 



EXCHANGE DEPARTMENT 



Offerings — To members only. Return postage should accompany the re- 

 quest. 



Mr. A. J. Beals, 71 West 23d Street, New York City. — Fissidens ohtusi- 

 folius Wils., collected by Mr. Beals on limestone rocks cf the Housatonic River, 

 Falls Village, Connecticut, Sept., 19 16, in fine fruit. 



Dr. Albert C. Herre, State Normal School, Bellingham, Washington. — 

 Cyphelium inquinans (Sm.) Trevis. 



Mr. Charles C. PHtt, 3933 Lowndes Ave., Baltimore, Maryland. — Alectoria 

 jubata (L.) Nyl., collected in Switzerland by Mr. P. G. M. Rhodes. 



