120 BOTANICAL GAZETTE. [ May, 
pamphlet form as their work, over their name, such monographs as they may 
prepare.” The plan commends itself to us as a good one, and with proper pre- 
cautions likely to result in effective work in this division. One investigation, 
in which almost all botanists can assist, is the contemplated series of pheno- 
logical observations. Blanks (and further information) can doubtless be ob: 
tained by any of our subscribers who will express a desire for them. 
OPEN LETTERS. 
Seeds of Mentzelia. 
B any’ botanist send me seeds of Mentzelia ornata, in good actin for 
pO tore Joun M. CovuLt 
Cranfordsvlle, Ind. 
Liquid Glue for mounting plants, etc. 
Glue, half panes pestic pega nee pint. er k the gine into small pieces, 
' put it into the acid a it on ack 09 of the stove for a few hours 
and then it is always renee for fed npn k it ila a pili’ and it will keep 
any pay of time. Good to put the back on ahicncn wa 
Paola, Kan Dr. J. H. Oyster. 
Arrangement of Herbrria, etc. 
‘ Professor Beal’s inquiry in the April GAzEeTrE prompts the following re- 
ections 
After a ae of both plans, I have come to use the alphabetical arrange- 
ment of gene and species, arranging the orders according to Bentham and 
Hooker. To. facilitate the arrangement in the mpetoret sequence, whenever . 
i f 
alphabetical or pomeriee! sequence is at bes ee cacaien for con- 
venience of reference. In an he death it is less eetimeble than when ap- 
plied to notes and referen ath Some eight years tee when I began an exten- 
sive specific subject-index in ‘lta branches of botany, I arranged my cards 
oe cally. There is no question but those referring to a given genus are 
i 
it,-it Is a . 
h the Genera Plantarum before us, we rs pick them out, in an alphabeti- 
cal anes, but it is far better to find them in proper sequence, and as rapidly 
2 my lenis are being a sxranaed etd ae to the nore system. seen 
the experience of Dr. Gray, 1 am not at all sure that I shall not wish my gen 
covers were similarly Py iubeas , as his are. However, the tok py reartoaetie 
them i a less — pa a that of rearranging a a, i ex. 
Some time since Professor Bessey stated = the 
Naturalist that Sep collections a tung a “Ellis, Roumeguére and Winter are 
best divided and the species distributed where they belong, in the herbariam. 
I think this will ultimately crore a source of annoyance to otry i, 
for without a system references the : rs . 
0 come inaccessible in consequence of the frequent removals hey ex 
rience from genus to genus in hig chenccatle group. With ceed todenst 
