at ternij and neonate; light microscopy of semi-thin sections, 

 electron microscopy of ultrathin sections; literature discussion: 

 extensive bibliography. 



31. 



C.HILDEBRAND and S.SKOGLUND. 1971. Calibre spectra of some fibre 

 tracts in the feline central nervous system during postnatal de- 

 velopment; Histochemical studies of adult and developing feline 

 spinal cord white matter 



Acta Physiol. Scand. Suppl.364. pp. 5-4l and 145-166, 47 figs., 

 6 tabs. 



32. 



P.N.JOHNSTONE. 1971. STUDIES ON THE PHYSIOLOGICAL ANATOMY OF THE 



EMBRYONIC HEART 



Thomas, Springfield. XVI, 139 PP • » 34 figs., subject index. 



$ 11.50 



This monograph reports on a protracted study carried out by a 

 study group at the University of Missouri Medical Center. The 

 object was to analyse the functional development of the chick 

 heart in order to assist in the interpretation of the functional 

 anatomy and electrocardiogram of the adult human heart. The main 

 method used was that of time-lapse cinematography combined with 

 electrophysiology , in such a way that each film frame simulta- 

 neously recorded the shape of the heai't and the progression of 

 the electrocardiogram. Dissection and ligaturing experiments 

 supplemented these data. 



An introductory chapter presents a survey of early chick heart 

 development from Hamburger and Hamilton stage 7 onwards (mainly 

 cardiac loop stages). The main chapters are concerned with 

 stages 17-31 (6O-I68 hrs. of incubation; late cardiac loop till 

 fully functional stage). A brief final chapter presents similar 

 data on the living human heart. 



The book is well produced. It is illustrated mainly with film 

 sequences (both black-and-white and colour), photographs, and 

 corresponding line drawings. The bibliography contains older 

 literature only. 



33. 



J.RAYNE and G.N. C . CRAWFORD. 1971. THE DEVELOPMENT OF THE MUSCLES 

 OF MASTICATION IN THE RAT 



Springer, Berlin, etc. Ergebn. Anat .Entw.gesch. Bd.44, H.5. 55 pp. 

 34 figs., 1 tab., subject index. DM 25.00, $ 7.8O 



Careful cytological and histological study of the masseter, 

 temporalis, and medial and lateral pterygoids in embryos between 

 10 days and birth; reconstructions; condensed "normal table" for 

 rat development (day 12-18; correlated with Streeter Horizons). 



34. 



P.O.SCHMITT, ed. 1970. THE NEUROSCIENCES, Second study program 

 Rockefeller Univ. Press, New York. XVIII, IO69 pp., 607 figs., 

 author and subject Indexes. $ 30.00 (professional ed.), $ 6O.OO 

 (reference ed . ) 



This magnificent book arose from the second triennial Intensive 

 Study Program of the M.I.T. Neurosciences Research Program. It 

 was held during three weeks in the summer of I969, and was at^ 

 tended by I60 scientists. The book contains eight "symposia" 

 covering a broad variety of subjects, ranging from the molecular 

 level to behaviour and psychology. The 88 contributions are in 



24 



