166 CARNEGIE INSTITUTION OF WASHINGTON. 



Delays incident to the war have held back each of the two volumes 

 upon the expedition to Australia in 1913, but it is hoped that at least 

 one volume will soon appear, as will also Volume xii of Papers from 

 the Department of Marine Biology. 



The following papers, based upon studies made at Tortugas, are 

 known to have been published during the year, or not previously 

 reported, by agencies other than the Carnegie Institution of Wash- 

 ington : 



Cabt, Lewis R., 1916. The influence of the marpinal sense-organs on metabolic activity 



in Cassiopea xamachana Bigelow Proc. Nat. Acad. Sci., vol. 2, No. 12, pp. 



709-712. 

 , 1917. The influence of the marginal sense-organ.s on functional activity in Cassi- 

 opea xamachana. Anat. Rec, vol. 11, No. 6, pp. 527-530. 

 , 1917. The part played by the Alcyonaria in the formation of some Pacific coral 



reefs. Proc. Nat. Acad. Sci., vol. 3. 

 Dahlgeen, Ulric, 1917. Production of light by the lower insects. Jour. Franklin Insti- 

 tute, pp. 79-95, 9 figs., January. 

 , 1917. Production of light by the elaterid beetles. Jour. Franklin Institute, pp. 



211-222, 7 figs., February. 

 , 1917. Production of light by the lampyrid beetles. Jour. Franklin Institute, 



pp. 323-349, 23 figs., March. 

 , 1917. Production of light by the Cephalochordata. Jour. Franklin Institute, 



pp. 422-451, 10 figs., April. 

 , 1917. Production of light by the tunicates and elasmobranch fishes. Jour. 



FrankUn Institute, pp. 735-755, 10 figs., June. 

 GoLDFARB, A. J ., 1917. Variability of germ-cells of sea-urchins. Proc. Nat. Acad. Sci., 



vol. 3, pp. 241-245, April. 

 Harvey, E. Browne, 1917. A physiological study of Noctiluca, with special reference to 



light production, anaesthesia, and specific gravity. Proc. Nat. Acad. Sci., vol. 



3, pp. 15-16, January. 

 Hatai, S., 1917. On the composition of the medusa Cassiopea xamachana and the changes 



in it after starvation. Proc. Nat Acad. Sci., vol. 3, pp. 22-24, January. 

 Jordan, H. E., 1917. Aortic cell-clusters in vertebrate embryos. Proc. Nat. Acad. Sci., 



vol. 3. pp. 149-156, March. 

 , 1917. The history of the primordial germ-cells in the loggerhead turtle. Proc. 



Nat. Acad. Sci., vol. 3, pp. 271-277, April. 

 LoNGLEY, W. H., 1916. Observations upon tropical fishes and inferences from their adap- 

 tive coloration. Proc. Nat. Acad. Sci , vol. 2, pp. 733-737, December. 



, 1917. The selection problem. Amer. Nat., vol. 51, pp 250-256, April. 



,1917. Studies upon the biological significance of animal coloration: I. The colors 



and color changes of West Indian reef-fishes. Jour. Exp. Zool., vol. 23, pp. 



536-601, August. 

 , 1917. Studies upon the biological significance of animal coloration: II. A revised 



working hypothesis of mimicry. Amer. Nat., vol. 51. pp. 257-285, May. 

 Mayer, A. G., 1917. Coral reefs of Tutuila, with r?^ference to the Murray-Agassiz solution 



theory. Proc. Nat. Acad Sci., vol. 3, pp. 523-526, August. 

 , 1917. Further studies of nerve-conduction in Cassiopea. Amer. Jour. Phys., vol. 



42, pp. 469-475. 

 . On the non-existence of nervous shell-shock in fishes and marine invertebrates. 



Proc. Nat. Acad. Sci., vol. 3, pp. 597-598. 

 McClendon, J. F., 1916. The composition, especially the hydrogen-ion concentration, of 



sea-water in relation to marine organisms. Jour. Biol. Chem., vol. 28, pp. 



135-152, December. 

 Pbatt, H. S., 1914. Trematodes of the loggerhead turtle (Caretta caretta) of the Gulf of 



Mexico. Archives de Parisitologie, tome 16, pp. 411-427, pis. 4 and 5, 13 figs. 



