1889. ] NEW YORK ACADEMY OF SCIENCES. 113 
With the aid of the lens, I picked up on the point of my pena 
small particle of wood that a worker let fall ; it will give you an 
idea as to size, though I have seen them have larger pieces. It 
is gummed to the inclosed sketch, and the spot is marked thus ©. 
You will have to use your lens. I consider this remarkable, and 
hope you will receive it all right. 
While at Gatun Station, a few days since, I obtained two speci- 
mens of separate nests of the species No. 5 in my last package to 
you. On opening one nest, I found one-half of it occupied by 
an entirely different species—a black ant, not a Termite. There 
Fic. 9.—Improved Termitarium of Mr. J. Beaumont. a, glass jar, 6 x 9 inches, filled 
two-thirds with earth; b, e, small tree-stem, fixed into the soil and bearing a sub-globu- 
lar nest of Hutermes ; c, c, braces to steady it; d, nest, 10% inches long, and raised 18 
inches above the earth in the jar; f, opening made in the nest, from which the “‘ bridge,”’ 
g, leads to the ‘‘ annex jar,” h, partly filled with soil. When in use, the jars are placed 
in vessels partly filled with water, to prevent escape. 
were the eggs, lurve, and winged ones of the black variety. In 
the other half, occupied by the Termites, were larvze also—doubt- 
less their own. Here also, to my surprise, were the tracks of 
those called Termes testaceus L., on a fence-post, but no nest 
visible. While riding over the Panama Railroad during the 
week, I noticed the well-known tracks of the Hutermes running 
up the whole length of a creosoted telegraph pole. It will be in- 
teresting to knuw whether they will penetrate wood so prepared. 
There was also a green surface growing over the north side of 
these poles. Ihave since been told that these poles were not 
