-~5- 

_ troversies between buyers and sellers of noney as to its proper color grad- 
 irig ; 
¥ BY * 
The work on the coloring materials in honeys of various types, under- 
taken in cooperation with the Carbohydrate Laboretory of the Bureau of Chem- 
istry, has now reached the stage when it is possible to undertake routine 
' analyses of the samples of honeys from different pisént sources collected for 
the purpose, Five pliant pigments have teen isolated from honeys examined, 
occurring in varying proportions in different herevs, The economic purpo se 
of this work is to determine whether there is any reliable correlation be- 
tween the color grade of nonsy and its suitebility as winter stores for bees 
in long confinement, Determinations are also being made of honey dextrins. 
in MISCELLANEOUS 
(Items from the National Museum contributed by S. A, Rohwer ) 
Dr. W. M. Mann left September 17 for Mexico, to continue his investi- 
gations of fruit flies in connection with work for the Federal Horticultural 
Board. 
Raymond ©. Shannon returned from Panama Septemver 24. Mr. Shannon has 
been in the Canal Zone since March, devoting most of his time to studying the 
life history and biology of mosmitoes. He has also secured miscellaneous 
collections of insects. During part of the summer Dr. H. G. Dyar was in the 
Canal Zone with Mr. Shannon, and together taney have collected immature forms 
of most of the mosquitoes previously recorded in the Zone. <A few of the 
species which have been recorded are stili wumown in the larval stage, and 
“vntil the collection is carefully studied it is impossible to state whether 
there are any new forms. 
William Schaus recently went to New York to return part of the Lepi- 
doptera from the Galapagos Islands. He tcok types of 26 new species to have 
them illustrated for a report of the collections recently made by the Williams 
expedition. While in New York he secured through purchase and gift some rare 
species frem South America for the National Collection. 
Dr. Carlos de la Torre y Huerta, of Cuba, recently visited the National © 
Museum, and while here paid a visit to the Division of Insects to renew his 
acquaintance with the various members of the section, especially Doctor Mamn, 
Dr. de la Torre has charge of the Natural History Collections in Havana, and 
supervision over the well-known Gundlach collection. 
Field workers are esvecially recuested te forward for the National 
Collection well mounted specimens of the commoner economic insects. It is 
especially desired to have these’ collections accompaniei by alcoholic mater- 
jal of the immture stages. Repeated requests for exchanges of commoner eco- 
nomic insects have caused consiceréable ciahbavrassment, because it is in these 
_ forms that the collection seems to be weakest, Some days ago, when requested 
