amphibians, by Zeuthen and Williams on division-limiting morphogenetic 

 processes in Tetrahymena, by Seno et al. on erythroid cell differentiation, by 

 Kuroda on aggregating factors in embryonic liver cells, by Takeuchi on polar 

 organization in slime molds, and by Yanagita et al. on fruit body formation 

 in Basidiomycetae. 



Most of the papers are followed by brief group discussions. The book is 

 very well produced and illustrated, and is concluded by a subject index. 



55 THE EMERGENCE OF ORDER IN DEVELOPING SYSTEMS 



1968 

 Editor: M. Locke Academic Press 



Devel. Biol., Suppl. 2 New York - London 

 350 pp., 113 figs., 17 tbs. Price: $ 12.— 



Contributors: Anfinsen (Bethesda, Md.), DeHaan (Baltimore, Md.), Edds (Providence, R.I.) , 

 Fawcett (Boston, Mass.), Gross (Boston, Mass.), Hamburger (St. Louis, Mo.), Harrington 

 (Baltimore, Md.), Heslop-Harrison (Madison, Wis.), Josephs (Baltimore, Md.), Kollros (Iowa, 

 la.), Loewenstein (New York, N.Y.), Robbins (Cambridge, Mass.), Sperry (Pasadena. Calif.), 

 Tilney (Cambridge, Mass.), Weston (Cleveland, Ohio), Zwilling (Waltham, Mass.) 



This is the report of the 27th Developmental Biology Symposium held in 

 Ithaca, N.Y. in June 1968. The volume is dedicated to Viktor Hamburger, 

 and contains a delightful address in honour of Hamburger by J. Holtfreter. 



The 1 1 papers read at the Symposium are grouped into four sections as 

 follows: I. Self-assembly of macromolecular structures (2 papers); II. Ordering 

 of subcellular units (3); III. Emergence of order in tissues and organs (3); 

 IV. Emergence of nervous coordination (3). All papers are highly authoritative 

 and well organized, and all will be read with great interest by developmental 

 biologists. The following papers dealing with rather less familiar subjects may 

 be mentioned specifically: a paper by Tilney on the role of microtubules in 

 cellular morphogenesis; one by Heslop-Harrison on the emergence of cell wall 

 pattern in higher plants; one by Loewenstein on electrical and chemical com- 

 munication through cell junctions and its developmental implications; and one 

 by Sperry on plasticity of neural maturation in man. 



The discussions held at the Symposium are not recorded. The book is well 

 illustrated and has author and subject indexes. 



56 DIFFERENTIATION AND DEFENSE MECHANISMS 



IN LOWER ORGANISMS 

 1968 

 Editor: M. M. Sigel The Tissue Culture Association 



"In Vitro" vol. 3 The Williams & Wilkins Comp. 



211 pp., 88 figs., 22 tbs. Baltimore 



Price: $ 11.50 



Contributors: Acton (Birmingham, Ala.), Attleberger (Birmingham, Ala.), Beasley (Coral 

 Gables, Fla.), Burnett (Notre Dame, Ind.), Caldwell (Fargo, N.D.), Campbell (Irvine, Calif.), 

 Chadwick (Kingston, Ont.), Clutter (New Haven, Conn.), Davis (Cleveland, Ohio), Dawe 

 (Bethesda, Md.), Doyle (Storrs, Conn.), Evans (Birmingham, Ala.), Fox (Madison, Wis.). 

 Grace (Canberra), Haynes (Notre Dame. Ind.), Horikawa (Madison, Wis.), Kent (Newark, 

 Del.). Laufer (Storrs, Conn.), Legler (Birmingham, Ala.), Lenhoff (Coral Gables. Fla.). Ling 

 (Madison. Wis.), Marks (Fargo, N.D.), Moscona (Chicago, 111.), Painter (Birmingham, Ala.), 

 Regan (Oak Ridge, Tenn.). Reinecke (Fargo. N.D.). Sigel (Coral Gables. Fla.), Sussex 

 (New Haven, Conn.). Tripp (Newark, Del.) 



This book embodies the papers read at a Symposium held in Philadelphia 

 on June 5 — 7, 1967, as well as abstracts of all papers presented at the 18th 



337 



