34-O STEFAN KOPEC. 



metamorphosis in a normal manner, provided the caterpillar does 

 not die of starvation. On the contrary, the middle and hind frag- 

 ments undergo pupation only if they have belonged to caterpillars 

 which would have pupated in a few days. 



7. The Malpighian tubes are transformed into tubes of the adult 

 insect independently of the intestine and of the performance of 

 their specific function. 



E. BIBLIOGRAPHY. 

 Papers marked by an asterisk are known to me only from abstracts. 



Abderhalden, E. 



* '15 Studien uber die von einzelnen Organen hervorgebrachten Substanzei; 



mit spezifischer Wirkung. i. Mitteilung. Arch. f. d. ges. Physiol., 



Vol. 162. 



'19 2. Mitteilung. Ibidem, Vol. 176. 

 Adler, L. 

 '14 Metamorphosestudien an Batrachierlarven. i. Exstirpation endokriner 



Drusen. A. Exstipation der Hypophyse. Arch. f. Entw. Mech., Vol. 



39- 

 '16 Untersuchungen iiber die Entstehung der Amphibienneotenie. Arch. f. 



d. ges. Physiol., Vol. 164. 

 Allen, B. M. 



* '16 Extirpation Experiments in Rana pipens Larvae. Science. 



'17 Effects of the Extirpation of the Anterior Lobe of the Hypophysis of 



Rana pipiens. BIOL. BULL., Vol. 32. 

 '18 The Results of Thyroid Removal in the Larvae of Rana pipiens. Journ. 



of Exper. Zool., Vol. 24. 

 '19 The Relation of the Pituitary and Thyroid Glands of Bufo and Rana 



to lodin and Metamorphosis. BIOL. BULL., Vol. 36. 

 Babak, E. 

 '05 Ueber die Beziehung des zentralen Nervensystems zu den Gestaltungs- 



vorgangen der Metamorphose des Frosches. Arch. f. d. ges. Physiol., 



Vol. 109. 

 '13 Einige Gedanken iiber die Beziehung der Metamorphose bei den Amphi- 



bien zur inneren Secretion. Zentrbl. f. Physiol., Vol. 27. 

 *Brendgen, F. 



'14 Ueber die kiinstlich erzielte Metamorphose der Alyteslarven. Anatom. 



Anzeiger., Vol. 46. 

 Cattle, J. Th. 

 '80 Beitrage zur Kenntnis der Chorda Supra-spinalis der Lepidopteren und 



des zentralen, peripherischen und sympatischen Nervensystems der Rau- 



pen. Zeitschr. f. wiss. Zoolog., Vol. 35. 

 Conte, A. et Vaney, C. 

 'n Production experimental des Lepidopteres acephales. Comptes Rend. 



Acad. Sc. Paris, Vol. 152. 



