INTRODUCTION 



In the interest of the subscribers the following remarks are made on the 

 contents of this Supplement. 



This year contact has been established with the Institute of Experimental 

 Biology of the Academy of Medical Sciences of the U.S.S.R., Moscow. As 

 our readers are no doubt interested in the work carried out at this Institute, 

 it was not considered desirable to postpone publication of the data till the 

 next full issue. They have therefore been included in the list of addresses. 



In connection with the decision that the periodical will henceforth embrace 

 both botanical and zoological developmental biology (see eighth full issue. 

 Introduction), special attention is drawn to two important books, viz. "Embryo- 

 genesis in plants", by C. W. Wardlaw, 1955 (reviewed in seventh full issue. 

 1957, page 220) and "Plant morphogenesis", by E. W. Sinnott, 1960 (reviewed 

 in the present Supplement, page 36). A third book, of somewhat more limited 

 importance in this connection, is that by R. J. Gautheret (reviewed in this 

 Supplement, page 30). 



Information concerning the team work and building projects of the Hubrecht 

 Laboratory may be found on page 15. 



P. D. NIEUWKOOP 



