Adrien Albert

The author is indebted to Professor Adrien Albert for many helpful discussions during the preparation of this article. 

My thanks are also due to members of the Editorial Board, espa-cially Professor Adrien Albert to whom I owe a great debt of gratitude for his kindly advice and encouragement. The cooperation of Academic Press is appreciated. 

ADRIEN ALBERT and W. L. E. ARMAREGO Department of Medical Chemistry, Institvte of Advanced Studies,... 

Adrien Albert, Research School of Chemistry, The Australian National University, Canberra, Australia (117)... 

It is now 13 years since the appearance of Volume 1 of Advances in Heterocyclic Chemistry, and significant progress in many of the subjects covered in the early volumes of the series has been made since publication. We have therefore embarked on the policy of updating appropriate chapters, and three of the articles in the present volume are of this type. Adrien Albert has written an account of the progress of covalent hydration since its first appearance in Volume 4. P. Tomasik and C. D. Johnson have reported on progress in the application of the Hammett equation to heterocycles since the Jaffe and Lloyd Jones article in Volume 3, and A. Holm has similarly taken on the account of 1,2,3,4-thiatriazoles given by Jensen and Pedersen in the same volume. 

The author wishes to acknowledge, with thanks, the helpful advice given by Professor Adrien Albert during the preparation of this manuscript. 

Covalent Hydration in Nitrogen-Containing Heteroaromatic Com pounds I. Qualitative Aspects Adrien Albert and W. L. F. Armarego... 

Submitted by Adrien Albert and Bruce Ritchie. Checked by R. L. Shriner and John C. Robinson, Jr. 

Adrien Albert W. C. Ashley R. Baltzly Alan Bell H. E. Bigelow... 

Adrien Albert, Department of Medical Chemistry, John Curtin School of Medical Research, Canberra, Australia and Fachbereich Chemie, Universitat Konstanz, West Germany (1)... 

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