8 9 - 
desires especially material of the less common American species, those peculiar 
to the country being most wanted. There is not sufficient quantity of any of 
Mr. Lillie’s species for a general offering, but the Secretary will be glad to arrange 
for individual exchanges with any who will write him. 
MISCELLANEOUS NOTES 
Medical Notes for the tropical collector. — One who has had any experi- 
ence collecting in warmer climates will appreciate the notes on medicines con- 
tributed by E. B. Williamson 1 in his account of “A Collecting Trip to Colombia, 
South America.” For warding off fever he took four grains of quinine a day in 
four doses His one light attack was cured by increasing the dose for a few 
days to about fifteen grains per day. For amoebic dysentery paregoric in fre- 
quent doses and alcresta ipecac were used from the start. Paregoric was dis- 
continued when no longer needed and ipecac, equivalent to four hundred grains, 
was taken at the rate of sixty grains per day. This effected a prompt cure. 
For red bugs (harvest mites) cresol compound, which can be gotten under various 
trade names and is used as a dip or wash for live stock, was mixed with about 
ten parts of water and sponged all over the body morning and evening, allowing 
it to dry on. Williamson says this is a splendid antiseptic and is also of value 
as a local anaesthetic allaying irritation caused by bites of vari ous insects. Aqua am- 
monia was found useful for relieving pain caused by more severe bites. Scratches 
and wounds were cleansed and rubbed with a bit of gauze or cotton soaked in a 
solution of one hundred and twenty grains of resorcin and twenty grains of sali- 
cylic acid in eight ounces of fifty per cent, alcohol. Iodine was used on sore 
toe-nails due to too much wading. It was found helpful to dust into the dry 
socks each evening a mixture of talcum powder, powdered alum, and sulphur. 
“ Dobie itch” was successfully cured with balsam of Peru after iodine and boracic 
acid had failed. Salol was used as an intestinal disinfectant in dysentery, and 
the present writer can vouch for its value from his own experiences in the Isle 
of Pines. O. E. J. 
EXCHANGE DEPARTMENT 
Offerings — To Members only. Return postage, rather than a stamped en- 
velope should be sent. 
Rev. H. Dupret, Seminary of Philosophy, Montreal, Canada . — Dicranum 
Drummondii C. M. and D. longifolium Ehrh. c. fr. (U. S. postage accepted.) 
Mr. Edward B. Chamberlain, 18 West 89th Street, New York City. — Tham- 
nium Hildebrandlii (C. M.) Besch. British East Africa, coll. Mearns. (Cour- 
tesy of the Smithsonian Institution). 
1 Museum of Zoology, Univ. Mich., Miscel. Publ. No. 3. 1918. 
