Tadnne, Vol . 24, No . I0, pp . I023-1027, 1986.

OOtI-0101/a6 ß.00+ .00Prioted lo Greu Brfuin.

Paa~maa lourivb Ltd.

REVIEWS

BAESINSKY, A. and BpsL, H. Gjjtpüze, 295 pp . ISBN 3-8047-0680-0 . DM 136, - (in German). Stuttgart:Wiaaenachaftliche Verlagsgesdlachaft mbH (1985).

PICxINO mushrooms is rather popular, although it may be dangerous. Comprehensive knowledge is essential .After an excellent book about toxic plants (Faornve, D. and PeXtvn®t,H. J., Gjjtpjlanun) came out in 1982

(tad Edn 1983), the same publishers edited this handbook about toadstool:. The book starts wiW a shortintroductory chapter dealing with general information about toadstool intoxication . The following main drapterdiscussing nine different intoxintion syndromes is exodlent .The first and most important of Utese is phalloidea syndrome (further orellanus, gyromitra, muscarin,

pantherina, psilocybin, coprinus, psxillus sad gastroinr~r~ mushroom syndrome, making up ninety Per centof all lethal toadstool intoxication. Symptoms and development of intoxication are described in detail for eachsyndrome . The chemistry also does not go abort. The relationship between dtemical structure sadactivity ofthetoxin is discussed in pert, as for instaaa in the case of amatoxias sad phallotoxina. The chemical section iscompleted with experimental instructions about extraction, separation and identitifcatioa of these toxins . Thesymptomatic, chemical, analytical, biochemical, pharmacological and therapeutic actions on the correspondingsyndromes are followed by detaüed praentation of several toadstools causing these hinds of intoxication.Various, mostly colored and excdlent pictures, as well as a comprehensive description makes a reliableidentification oftoadstools poaslble . Besides a praise macro- and microscopic description the authors set greatstore by showing mistakes which arcposdbk when identüying differeat :pcies . Two sections aboutintoxicationwith raw mushrooms and auapldous compounds terminate this drapter .A third dutpter provides the reader with an introduction in toadstool identification, but it imparts a general

basis, only. This is completed, however, by a detailed key for dassification of all spades of mushroom andtoadstool in Central Europe . An attensive glossary makes understanding of this book easy for aon~ta.Thus, this book is rcommeadable not only to pharmacists, medical dadora, toxicologists, chemists andbiologists, but is also a useful tool for laymen.This book is written dearly and it is plentiful in information . It provide: the reader with wdl balanced

discussions on the subject. The presentation is exodlent and the book will certainlyfend its wayto the customers,especially since tremendous work has been put into the numerous references which may lead to original papers .

H. C. Kares

JOLLEY, R. L., BULL, R. J., Kwn, S., RoeeaTS, M. H. and J~coes, V. A. Water Chlorination - Chemistry,Environmental Impact andHealth F,jjerts, Vo1.5, 1573 pp . Chelsea, MI: Lewis Publishers, Inc. (1985) .Ttus Hoox cover: the Procadings of the Fifth Conference on Water Chlorinatioa: Environmental Impact sadHealth Effete, held in Williamsburg, Virginia, 3-8 Jltne 1984. Its issue however is not simply waterdtlorination', but the ready supply of 'safe' water to every dozen. In a aeries of 116 papers the state ofknowledge oa this important topic for human wdfare is dealt with . Although very volumiaoua, this book is amust for everybody involved is the supply of 'safe' water.

I. Mt~a

G~t,wr, A., YwNG, C. C. sad BLOtIT, E. R. (Department of Biological Chemistry, Harvard Medical School,Boston, Massachusetts 02115, and Iauitllte of Molecular Biology, National Tsing Hua University, Hdnchu,Taiwan 300, Republic of China) Circular dichroism study of the unfolding-refolding of a cardiotoxia fromTaiwan cobra (Ngja ngjo atm) venom. Blodcernïstry ?4, 5678 (1985) .CracuLwa didu~oism spectroscopy has been used to study the unfolding-refolding prooaa of a cardiotoxlnfrom Taiwan cobra (Ngjo ngja stns) venom upon addition of fluoroaleohol: or sodium dodecyl sulfate (SDS) toits aqueous solution . In these experiments the disulfide bridges remained intact . The unfolding proaas has ban

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