202 BULLETIN 108, UNITED STATES NATIONAL MUSEUM. 



1909. Holmgren, N. Termitenstudien 1. Anatomisclie Untersucliungen. K. 

 Svenska Vetensk. Akad. Handl., vol. 44, No. 3, pp. 215, pis. 1-3, Uppsala 

 and Stockholm, 1909. Die Verwandtschaftsbeziehungen der Termiten, 

 pp. 208-213. 



1909. Knab, F. Luminous Termite Hills. Science, n. s., vol. 30, no. 773, Oct. 22, 



pp. 574-575. (In the Amazon region, in tlie vicinity of Santarem, Brazil, 

 termite hills are luminous at night.) 



1910. Holmgren, N. Versuch einer Monographie der amerikanischen Eutermes- 



Arten. Mitteil. Naturh. Mus. Hamburg, vol. 27, p. 237 (Eutermes). 



1910. MoNTANDON, A. L. A propos des soi-disant neutres chez les insectes. Bull. 



Soc. Romane de Stiinte, vol. 19, nos. 1-2, pp. 444-452. Bucharest. (Records 

 an instance of an old male rabbit which castrated young rabbits by depriving 

 them of their testicles by biting. M. Montandon attributes the reason: 

 "Pour ^vincer une concurrence qui parait-il commen^ait a le gener." He 

 generalizes: "Et pourquoi refuserait -on aux termites, aux fourmis et abeilles 

 sociales, d'avoir eux aussi trouv6 la clef de ce mystere.") 



1911. Bowman, I. Forest Physiography, New York. (Maps of regions of United 



States.) 

 1911. Holmgren, N. Termitenstudien 2. Systematik der Termiten. K. Svenska 

 Vetensk. Akad. Handl., vol. 46, no. 6, pp. 86, pis. 1-6, Uppsala and Stock- 

 holm, 1911. Ordnung Isoptera, pp. 10-11. 



1911. Strickland, E. H. A quiescent stage in the development of Termes flavipes 



Kollar. Journ. N. Y. Ent. Soc, vol. 19, no. 4, Dec, pp. 265-269. (Noted 

 quiescent stages during molt of nymphs of the first form.) 



1912. EscHERiCH, K. Termitenleben auf Ceylon. Verlag v. Gustav Fischer, Jena. 



(Describes apparatus and methods of combating termites by the use of poison 

 gases, i. e., fumigating their galleries and nests in the ground by forcing 

 poison fumes into them with a pump, and how their presence can be detected 

 " at great depths in the earth and in infested houses by the use of the micro- 

 phone ; this is particularly interesting in view of the use made of poison gases 

 in trench warfare and of the microphone by submarines at sea to detect the 

 presence of destroyers; also its use by sappers in countermining operations 

 listening for digging by the enemy in the great world war.) 



1912. Feytaud, J. Contribution a I'etude du termite lucifuge. Arch. Anat. Micros., 

 vol. 13, fasc. 4, pp. 481-606, figs. 34, 30 juin. 



1912. Fuller, C. Dept. Agric, Union of South Africa, No. 54. (Agric Journ. 

 Union South Afi-ica, Sept. and Oct., 1912.) (p. 22, "Universal ant exter- 

 minator", to fumigate nests in the ground; in South Africa use mixture 7 

 lbs. arsenic to 3 lbs. sulphur, or 2 lbs. sulphur to 8 lbs. arsenic; results rel- 

 atively the same when the sulphur proportion is reduced; in Philippine 

 Islands use proportion 3 sulphur to 1 arsenic.) 



1912. Holmgren, N. Termitenstudien 3. Systematik der Termiten. Die FamiUe 

 Metatermitidae. K. Svenska Vetensk. Akad. Handl., vol. 48, no. 4, 166 pp., 

 pi. 1; Uppsala and Stockholm, 1912. Blick auf dem mutmasslichen, stam- 

 mesgeschichtlichen Entwicklungsverlauf der Termiten, pp. 129-153. 



1912a-1913. Holmgren, N. Termitenstudien 4. Vesuch einer systematischen 

 Monographie der Termiten der orientalischen Region. K. Svenska Vetensk. 

 Akad. Handl., vol. 50, no. 2, 276 pp., pis. 8. Uppsala and Stockholm. (Sub- 

 genus Rcticulitermes established under the genus Leucotcrmes SUvestri.) 



1912. Snyder, T. E. Record of the finding of a true queen of Termes flavipes Kol. 



Proc Ent. Soc. Wash., vol. 14, no. 2, pp. 107-108, June 19. 



1913. AssMUTH, J. Wood -destroying white ants of the Bombay presidency. Journ. 



Bombay Nat. Hist. Soc, vol. 22, no. 2, pp. 372-384, 4 pis., Sept. 30. ("Frass- 

 bilder," how to determine genus of termites by burrows in wood.) 



