26 THE FLORIDA ENTOMOLOGIST 
boat and you can be out on the sand in your bathing suit, in 
comfort. 
Once when sheep were pastured there, the immunity disap- 
peared. Some time after the sheep were taken away, the Key 
became again immune. This is the reason why I think it is a 
problem coming under the jurisdiction of the Bureau of Plant 
Industry. 
If it is a plant that can be propagated, then oil or gold de- 
posits would not add as much to the wealth of this State as the 
application of the knowledge of this fact. I am not able to 
undertake a proper investigation. I would be very glad to give 
you every aid within my power. It is not a matter of especial 
bleakness. Mangrove grows along this shore. Mosquitoes are 
not in this mangrove. This condition has been known to exist 
for at least twenty years. I trust you will investigate.” 
Topography of Bambeo Key, Florida 
Bamboo Key is a small island, about three acres in area, sit- 
uated among the lower Florida Keys, approximately a half mile 
north of Key Vaca and about midway its length. No elevations 
of consequence occur, the highest point being about a foot above 
the water’s edge. The south, east, and west shores are rocky, 
consisting of coral. The north shore is not as rocky and a 
little sand beach is to be found. For the most part the key is 
of a shell and coral formation. Low depressions and swampy 
places to afford breeding places for mosquitoes do not exist 
about the key, except for a few small crab holes along the shore. 
The writer was unable to find brackish or fresh water existing 
on any portion of the key during either visit there and condi- 
tions about the key were exceedingly dry. 
Flora of Bamboo Key, Florida 
For the most part the key is devoid of trees. The few trees 
that do occur are close to the water’s edge, and are situated 
on the east and south shore, while the remainder of the key is 
overgrown with low growing plants and shrubs of various kinds. 
The trees are mainly the white mangrove or buttonwood 
Laguneularia racemosa (L.) Gaertn. and the red mangrove, 
Rhizophora mangle L. One or two Geiger trees, Sebestin 
Sebestina L., occur and a single coconut stands on the southwest 
