Dissertations 



21. 



D. H. M. FRIJTERS. 1976. CONTROL MECHANISMS AND COMPUTER DESCRIP- 

 TIONS OF INFLORESCENCE DEVELOPMENT 



Ph. D. thesis, Utrecht. 95 pp., 57 figs. 



Based on three published papers (1974-'76); introduction, theoretical model and 

 appendices added; models for vegetative and reproductive branching patterns in two 

 Composite species, based predominantly on Lnteractionless L-systems; integration mecha- 

 nisms; paracladial relationships; many branching diagrams. 



22. 



R. LETOUZE. 1976. QUELQUES MANIFESTATIONS MORPHOGENETIQUES ET 



BIOCHIMIQUES DE L'ACTION DES LUMIERES MONOCHROMATIQUES SUR LE 



DEVELOPPEMENT DU BOURGEON AXILLAIRE D'UNE BOUTURE DE SAULE. 



(SALIX BABYLONICA L.) EN CULTURE IN-VITRO 



Ph. D. thesis, Angers. 154 pp., 24 figs., 4 tabs, (mimeographed) 



Willow shoots produced by meristem culture and clonal propagation; growth of 

 axillary buds after decapitation in monochromatic light of different wave lengths; inter- 

 ference with apical dominance; phytochrome-type mechanism; phenylalanine ammonia- 

 lyase as a biochemical marker. 



INVERTEBRATE DEVELOPMENT (general) (see also 98, 104, 105, 106) 



Monographs 



23. 



O. M. IVANOVA-KAZAS. 1977. COMPARATIVE EMBRYOLOGY OF THE INVERTE 



BRATES; animals with trochophore larvae, Tentaculata, Chaetognatha, Pogonophora (in 



Russian) 



Izdat. Nauka. Moscow. 312 pp., 181 figs., index of terms; taxonomic mdex. 2R 89K 



(paper) 



Treatment according to eight different phyla, the first four being trochophorate; num- 

 erous good line drawings from various sources; extensive bibliographies. 



Dissertations 



24. 



J. P. NENON. 1977. ECOLOGIE ET BIOLOGIE DU DEVELOPPEMENT D'UN ENTO- 



MOPHAGE POLYEMBRYONNAIRE; Ageniaspis fuscicoUis Thomson 1875 (Hymenop- 



tere, Chalcidien, Encyrtide) 



Ph. D. thesis, Reims. 323 pp., 68 figs., 29 tabs, (mimeographed) 



Thorough, mainly descriptive study on the life cycle of a poly embryonic Hymenopte- 

 ran living as a parasite on several harmful Lepidopterans; short chapter on polyembryony 

 in plants and animals; some 150 pp. on reproduction, cleavage, fragmentation of emb- 

 ryos, influence of temperature and host, growth of parasitoids, influence of hormones in 

 vitro, postembryonic development; some good photographs and line drawings; long biblio- 

 graphy. 



207 



