690 



Yaughaii T. Waylaud Zacher Friedrich 



Yangbsn T. Wayland Geology of the Keys, the 

 Marine Bottom Deposits, and Recent Corals 

 of Southern Florida XVIII 285. 



Yangnna luaUillei n. Peru: Druce XIX 79. 



Yano M. Polyergus rufescens subsp. samurai n. 

 XXII 225. 



Yates S. M, St. John Woodchat in Cheshire 

 (Lanius) XIX 198. 



Yatsn Naohide Origin of the Sperm-center in the 

 Fertilizazion of Cerebratulus lacteus XVIII 

 131. 

 Experimental study of the Nemertine egg 



XVIII 141. 



Some Experiments on Cell-division in the 

 Egg of Cerebratulus lacteus XVIII 141. 



A Note on the Adaptive Significance of the 

 Sperm-head in Cerebratulus XVIII 176. 



Extraovate Experiments Egg of Sea-urchin 



XX 63. XXI 209. 



Experiments on Cleavage in the Egg of Cere- 

 bratulus XX 118. XXI 261. 



Experiments on Germinal Localization in the 

 Egg of Cerebratulus XX 128. XXI 269. 



Observations and Experiments on the Cteno- 

 phore Egg XXI 427. 



The Formation of the Centrosome in Enuclea- 

 ted Egg-fragments XXI 476. 



Experimental study of the Nemertine egg 



XXI 476. 



Yanghan T. Wayland Reports on the Scientific 

 Results of the Expedition to the Eastern 

 Tropical Pacific, in Charge of Alexander 

 Agassiz etc. Madreporaria XXI 424. 



Yeates Thomas Studies on the Embryology of 

 the Ferret XXII 401. 



Yerkes Robert M. Concerning the Behavior of 

 Gonionemus XVIII 67. 

 Methods of studying Color Vision in Animals 



XIX 103. 371. 



Modifiability of Behavior in its Relations to 

 the Age and Sex of the Dancing Mouse XIX 

 235. 

 s. Hadley Philip XIX 189. 



Yerkeg Robert M. & Bloomüeld Daniel Do Kit- 

 tens instinctively kill Mice? XXI 119. 



Yerkes Robert M. & Dodsou John D. The Rela- 

 tion of Strength of Stimulus to Rapidity of 

 Habit-Formation XVIII 115. 



Yerkes Wattcrson Ada Modifiability of Behavior 

 in Hydroides dianthus XVIII 69. 



Yoakum C. S. Some Experiments upon the Be- 

 havoir of Squirrels XIX 237, 334. 



Yokoyama Matajiro Some Tertiary Fossils from 

 the Micke Coal-field XXI 154. 



Yorke Warrington Pathogenicity of Trypano- 

 some XX 35. 

 A note on the pathology of lesions of the 

 cornea and skin in animals experimentally 

 infected with Trypanosoma rhodesiense 

 XXI 409. 



Yorke Warrington & Blacklock B. The Trypano- 

 somes found in Two Horses Naturally In- 

 fected in the Gambia XXI 409. 



Yoshida 8. Hymenolepis Japan XX 111. 



Yoshida Tanzo & Wcinland Ernst Beobachtun- 

 gen über den Vorgang d. Erwärmung b. 

 winterschlafenden Igel XXI 103, 202. 



Yosbiwara S. On some new fossil Echinoids of 

 Japan XVIII 296. 



Yobs Hermann v. Beitr. z. Kenntnis d. Eireifung 

 b. d. Acanthocephalen XXI 259. 



Yothers Merrill A. Notes Lixus marginatus XX 

 278. 

 PerlUus claudus a Beneficial Insect XXII 97. 



Yonng James The Structure of the Stroma of 

 the Endometrium, and its Bearing on the 

 Menstrual Changes XXI 132, 320. 



Yonng Robert Thompson Histogenesis of Cysti- 

 cercus pisiformis XVIII 147. 

 The Occurence of Bufo columbiensis East of 

 the Rocky Mountains XIX 145. 



Yonng Robert Thompson Cestode Cytology XX 

 111. XXI 363. 

 The Somatic Nuclei of Certain Cestodes XXI 



469. 

 Gametogenesis in Taenia serrata XXI 470. 

 Yonngman Wm. A Specimen of Rana tempora- 

 ria with abnormal Reproductive Organs 



XIX 147, 374. 

 Yponomeuta s. Hyponomeuta. 

 Ypsolopbus gigas Meyrick XIX 39. 

 Ypthima Afrika: Strand XIX 79. 



Yung Emile Effects anatomiques alimentation 

 intestin XVIII 86. 164. 



Variations de longueur de l'intestin chez les 

 grenouilles XVIII 164. 



Les centres moteurs des tentacules des Gastéro- 

 podes pulmonés XVIII 197. 



La sensibilitée des Gastéropodes terrestres 

 pour le lumière XX 92. XXI 246. 



Anatomie et malformations du grand tenta- 

 cule de l'escargot (Helix pomatia) XXI 457. 



Sur la structure de l'ovispermiducte et de la 

 glande albuminipare chez l'Hélix pomatia 



XXI 457. 



De l'insensibilité et de la cécité de l'Escargot 



des vignes (Helix pomatia) XXI 457. 

 Ynstov N. Contrib. question de la couleur de 



tapetum du found de l'oeil chien XXII 399. 

 Anomalies de la membrane vasculaire de 



l'oeil de chien XXII 399. 

 Contrib. question de la couleur du tapetum 



lucidum de l'oeil du chien XXII 399. 

 Tapetum lucidum^ de l'embryon de chien 



XXII 399. 



z. 



Zaborowski S. Presence d'un chameau dans une 

 grotte néolithique Salerne XXII 394. 



Nouvelle découverte d'un précurseur de 

 l'homme XXII 419. 



Crane néanderthaloide d'une caverne néoli- 

 thique des environs d'Ojcow XXII 419. 

 Zabrns gibbus (tenebrioides) Viviania pacta: 



Porta XX 307. 

 Zaccarini Giacomo Das Fettgewebe in den Rip- 

 penknorpeln XXI 82, 369. 



H grasso nelle cartilagini costali XXI 137, 369. 



Gleichzeitige Färbung d. Glykogens u. d. 

 Fettes in den Rippenknorpeln XXI 171. 

 Zachariadés P. A. Sur l'existence de cellules 

 ganglionnaires dans les racines antérieures 

 sacrées de l'homme XXI 136, 347. 

 Zacharias Otto Neue Zeichen-Projektionsappa- 

 rate XVIII 51. 



Einführung Plankton selbständiger XJnter- 

 richtsgegenstand XVIII 51, 242. 



Ferienkurs Pavillon zu Plön XVIII 52. 



Staatliche Sanktion biol. Unterricht XVIII 52. 



Parasitische Amöben in Volvox nainor XVIII 

 252. 



Hermesinum adriaticum im Schwarzen Meer 

 XVIII 257. 



Neue Alkoholometer XXI 177. 



Das Süßwasserplankton XXI 384. 

 Zacher Friedrieh Die Nordgrenze d. Verbreitimgs- 

 geljietes d. Mantodea in Europa XVIII 405. 



Über einige Laubheuschrecken d. Breslauer 

 Museums XVIII 407. 



Beitr. Kenntn. Pygidicraniden u. Diplatyiden 



XX 192. 



Zur Morphol. u. System d. Dermapteren XX 



192. 

 Tiergeogr. etc. Bemerkg. zu M. Burrs Derma- 



topterenfauna v. Britisch Indien XX 192. 

 Schmetterlinge u. Käfer als Schädlinge des 



Obstbaues XXII 60. 

 Schädelbildung einiger Eudermapteren XXII 



68. 

 Studien üb. d. System der Protodermapteren 



XXII 68. 



