SUBJECT AND AUTHOR INDEX 



ADMIRAL butterfly, Pyrameis atalanta 

 Linn. A quantitative study of tarsal 

 sensitivity to solutions of saccharose in 

 the red 445 



Agersborg, H. p. Kjerschow. Some ob- 

 servations on qualitative chemical and 

 physical stimulations in nudibranchiate 

 mollusks with special reference to the role 

 of the 'rhinophores.' 423 



Amphibians. Experiments on the meta- 

 morphosis of neotenous 397 



Analysis of the factors underlying suscep- 

 tibility to transplantable tumors. A 

 genetic 67 



Anesthetics. The control of head formation 

 in Planaria by means of 1 



BACTERLA.L content. The grow-th of 

 Paramecium in infusions of known. .. . 135 



B.4.Lpi, Edgardo. Studi sulla fisiologia del 

 sistema nervoso negli inset ti. IL Ricerche 

 sui mo^Tmenti di maneggio provocati nei 

 coleotteri 211 



Brain and eyes of Lepidoptera. Mutual re- 

 lationship in the development of the. . . . 459 



BtJCHAN.^N, J. William. The control of head 

 formation in Planaria by means of anes- 

 thetics 1 



Butterfly. Pyrameis atalanta Linn. A quan- 

 titative study of tarsal sensitivity to 

 solutions of saccharose in the red adrniral. 445 



CATERPILLARS of the opposite sex. 

 Physiological self-differentiation of the 

 wing-germs grafted on 469 



Characters. A case of true hermaphroditism 

 in the fowl, with remarks upon secondary 

 sex 1S5 



Chemical and physical stimulations in nudi- 

 branchiate mollusks with special reference 

 to the role of the 'rhinophores.' Some 

 observations on qualitative 423 



Ciliate. Frontonia. The process of ingestion 

 in the 333 



Circus rnovements provocati nei coleotteri. 

 Studi sulla fisiologia del sistema nervoso 

 negli insetti. II. Ricerche sui 211 



Coleoptera. Studi sulla fisiologia del sistema 

 nervoso negli insetti. II. Ricerche sui 

 movimenti di maneggio provocati noi ... 211 



Collins, H. H., Sumner, F. B., and. Fur- 

 ther studies of color mutations in mice 

 of the genus Peromyscus 289 



Color mutations in mice of the genus Pero- 

 myscus. Further studies of 289 



Crawling of young loggerhead turtles toward 

 the sea. The 323 



Current. II. The normal electrical polarity 

 of ObeUa. A proof of its existence. Ex- 

 perimental control of organic polarity by 

 the electric 477 



ELECTRIC current. II. The normal elec- 

 trical polarity of Obelia. A proof of its 

 existence. Experimetal control of or- 



ganic polarity by the 477 



Eyes of Lepidoptera. Mutual relationship in 

 the development of the brain and 459 



495 



FORMATION in Planaria by means of 

 anesthetics. The control of head 1 



Fowl, with remarks upon secondary sex 

 characters. A case of true hermaphrodit- 

 ism in the 185 



Frontonia. The process of ingestion in the 

 ciliate 333 



GENETIC analysis of the factors under- 

 lying susceptibility to transplantable 



tumors. A 67 



Goldsmith, William M. The process of in- 

 gestion in the ciliate, Frontonia 333 



Growth of Paramecium in infusions of known 

 bacterial content. The 135 



H.WriLTON, William F., Hartman, 

 Carl G., and. A case of true hermaph- 

 roditism in the fowl, with remarks 



upon secondary sex characters 185 



Hartman, Carl G., and Hamilton, Wil- 

 li.\m F. a case of true hermaphroditism 

 in the fowl, with remarks upon secondary 



sex characters 185 



Head formation in Planaria by means of 



anesthetics. The control of. 1 



Hermaphroditism in the fowl, with remarks 

 upon secondary sex characters. A case 

 of true 185 



INFUSIONS of known bacterial content. 

 The growth of Paramecium in 135 



Ingestion in the ciliate, Frontonia. The 



process of 333 



Insects. II. Ricerche sui movimenti di 

 maneggio provocati nei coleotteri. Studi 

 sulla fisiologia del sistema nervoso negli. . 211 



KOPEC, Stefan. Mutual relationship in 

 the development of the brain and eyes 



of Lepidoptera 459 



Kopec, Stefan. Physiological self-differen- 

 tiation of the wing-germs grafted on cater- 

 pillars of the opposite sex 469 



LE,\PING of the stromb (Strombus gigas 

 Linn.). The 205 



Lepidoptera. Mutual relationship in the 

 development of the brain and eyes of. . . 459 



Locomotion of certain marine polyclads. The 

 role of the nervous system in the 57 



Loggerhead turtles toward the sea. The 

 crawling of young 323 



Lund, E, J. Experimental control of organic 

 polarity by the electric current. II. The 

 normal electrical polarity of Obelia. .\ 

 proof of its existence 477 



M.\RINE polyclads. The role of the nerv- 

 ous system in the locomotion of certain. 57 



Metamorphosis of neotenous amphibians. 

 Experiments on the 397 



Mice of the genus Peromyscus. Further 

 studies of color mutations in 289 



MiNNiCH, DwiGHT E. A quantitative study 

 of tarsal sensitivity to solutions of sac- 

 charose in the red admiral butterfly, 

 Pyrameis atalanta Linn 445 



