1890.] NEW-YORK MICROSCOPICAL SOCIETY. 109 



beaks Eiitennes. This by no means avoids the confusion in the 

 niatter. And further study indicates that the habits of the two 

 genera are so different that I now propose to call all those 

 species having soldiers with beaks Milesnasitennes, soldier-nosed- 

 termes. 



The workmen know when they break a gallery and find a 

 mandibulate soldier that the nest is likely to be inside of some 

 post or beam near by, unless it should be a species of Termes 

 columnar, in which case it is likely to be a mud nest, rising from 

 the ground. These Termites belong to the genus Termes. On 

 the other hand, when they break a gallery and find a soldier 

 with a beak, the nest may be a long distance from that point, 

 but it will be on the exterior of the wood, or tree. These 

 Termites belong to the genus Milcsnasitermes. If the workman 

 does not see any exterior galleries, but finds a few little pellets 

 of wood, on the floor, he knows the Calotermes are in the wood. 

 The remedy in each case must be different. These simple des- 

 ignations can be understood by those, who must deal with the 

 subject practically. 



Lantern-slide No. 4 shows the representation, nearly full size, 

 of one of the largest nests of Milesnasitermes yet found upon 

 the Isthmus. It was in a store-house, and was 10 ft. in height, — 

 greatest width 2^ft., and greatest depth i^ft., estimated weight 

 300 lbs. The wood of the building was badly injured, while 

 galleries ran from this ^o other buildings. One gallery ran to a 

 chapel, and the organ was destroyed. 



Slide No. 5 shows a mud nest of Termes columnar, at Ceroyal 

 Station of the Panama R.R. , on the Pacific slope. It is over 

 5ft. in diameter on the base, and nearly 4ft. high. It is very 

 strong and readily holds up a man. These mud nests have only 

 been discovered on the Pacific slope. A species quite similar 

 has been found on the Atlantic slope, having a nest in a rotten 

 stump. 



Slide No. 6 shows Mr. Beaumont's study at Colon. On the 

 table is his microscope and several of the ash blocks containing 

 Termites for examination. It probably can be noticed that the 

 table legs are in jars of water, which is a common custom on 

 the Isthmus, to keep the Termites and common ants from the 

 table. 



On the table are two of Mr. Beaumont's glass termitaria, 



