— I03 — 



to deposit in the Public Library of that town, I use a scrap book with fair 

 white leaves, gumming the mosses directly onto the leaves, and writing in 

 the names. One cannot make up such a set, however, until one knows pretty 

 well how many and what kinds one is likely to find, so as to know how to 

 group them. A beginner should have a method allowing for the growth of the 

 collection and its rearrangement, and for the insertion of new finds among 

 the former ones, and of new forms of species already placed in the collection. 



4. My own specif,! herbarium is on half-size harbarium sheets, those 

 being easier to handle and examine than the full-sized sheets. If the moss is 

 large, it is mounted directly on the sheet, indeed, there maybe several sheets 

 to one species ; if small, it is mounted ona4x5or5x8 paper, and the paper 

 pinned onto the larger sheet with small pins (these pins, Kirby Beard & Co., 

 are only half an inch long, and can be bought at small-wares counters). 

 The use of these small pins allow one to add new mounts, or rearrange the 

 old ones, at will. This collection can grow to any extent. 



5. In arranging my local or Magnolia collection, which I keep in the 

 summer cottage, I am cramped for room, and here I economize space by 

 mounting all my mosses directly on the half-size sheets, and where the moss 

 is small, like most of the Bryums, or Ditrichums, I gum several species on 

 one sheet, though the Fontinalis and Sphagni require a sheet for each 

 species. 



6. In preparing mosses to presejit to any institution not cramped for 

 space, I use full size herbarium sheets, and of course but one sheet to 

 a species, and I try to have each species represented by many speci- 

 mens ; for instance, one to show it as it grows, another carefully picked out 

 to show the branching; one to show it growing clear and clean by itself ; 

 another, mixed with other mosses: one to show the sporophytes starting, 

 and the next, the swelling fruit; the third shows the ripe fruit dropping 

 caps and lids, and finally, one shows the old fruit with the empty spore- 

 cases; each of course has exact date and locality given, and if possible the 

 same moss is secured from various localities, to show range of distribution, 

 and also variations in growth. And on every sheet is gummed an envelope, 

 plentifully filled with plants, which can be taken out and studied. Such an 

 open-faced collection as this is meant to be freely handled and examined. I 

 admit that rare or valuable mosses must be protected by being in packets or 

 envelopes, and if there is any doubt about the species, a specimen must not 

 be gummed onto a sheet with other specimens. Such doubtful plants can 

 be given a sheet to themselves, or else provisionally placed in pin-attached 

 packets, which can be easily transferred elsewhere, when new revelations as 

 to their affinities occur Mr. Chamberlain's method of folding his packets 

 is like that which Mr. James taught me, except that I think Mr. James 

 folded his oblong paper, exceptly in the middle, making his top fold double 

 He then creased the ends backward and under, as Mr. Chamberlain 

 describes, thus holding the upper flap taut and firm. Boston, Mass. 



