Guenter Grethe, Chemical Research Department, Hoffmann-La Roche, Inc., Nutley, New Jersey.

• Properties and Reactions of Isoquinolines and Their Hydrogenated Derivatives (S. F. Dyke and R. G. Kinsman). Synthetic and Natural Sources of the Isoquinoline Nucleus (T. J. Kametani and K. Fukumoto). Biosynthesis of Isoquinolines (E. McDonald). Quaternary Isoquinolinium Compounds (C. K. Bradsher). Isoquinolinols and Isoquinoline Thiols and Their Hydrogenated Derivatives (B. Umezawa and O. Hoshino). Halogenated and Metallated Isoquinolines and Their Hydrogenated Derivatives (M. D. Nair). Alkyl, Alkenyl, Alkinyl, and Aryl Isoquinolines and Their Hydrogenated Derivatives (J. L. Neumeyer and B. C. Uff). Benzylisoquinolines and Their Hydrogenated Derivatives (W. Wiegrebe). Isoquinolines Containing Alcohol, Aldehyde, and Ketone Functions, Their Thio and Hydrogenated Derivatives (E. M. Kaiser and P. L. Knutson). Isoquinoline Carboxylic Acids and Derivatives and Their Hydrogenated Derivatives (F. D. Popp). Isoquinolines Containing Basic Functions at the Ring and Their Hydrogenated Derivatives (I. W. Mathison). Isoquinolines Containing Basic Functions in the Side Chains and Their Hydrogenated Derivatives (F. Kathawala and H. Schuster). Isoquinolines Containing Oxidized Nitrogen Functions and Their Hydrogenated Derivatives (J. W. Bunting). Isoquinolones and Their Hydrogenated Derivatives (N. J. McCorkindale). Isoquinolines Containing One Added Ring (F. P. Hauck). Isoquinolines Containing Two Added Rings (W. S. Saari and K. Shepard). Isoquinolines Containing Three Added Rings (T. J. Schwan and H. R. Snyder, Jr.). Isoquinolines Containing More Than Three Added Rings (P. H. Grayshan and J. V. Greenhill).

Guenter Grethe, Chemical Research Department, Hoffmann-La Roche, Inc., Nutley, New Jersey.

• Properties and Reactions of Isoquinolines and Their Hydrogenated Derivatives (S. F. Dyke and R. G. Kinsman). Synthetic and Natural Sources of the Isoquinoline Nucleus (T. J. Kametani and K. Fukumoto). Biosynthesis of Isoquinolines (E. McDonald). Quaternary Isoquinolinium Compounds (C. K. Bradsher). Isoquinolinols and Isoquinoline Thiols and Their Hydrogenated Derivatives (B. Umezawa and O. Hoshino). Halogenated and Metallated Isoquinolines and Their Hydrogenated Derivatives (M. D. Nair). Alkyl, Alkenyl, Alkinyl, and Aryl Isoquinolines and Their Hydrogenated Derivatives (J. L. Neumeyer and B. C. Uff). Benzylisoquinolines and Their Hydrogenated Derivatives (W. Wiegrebe). Isoquinolines Containing Alcohol, Aldehyde, and Ketone Functions, Their Thio and Hydrogenated Derivatives (E. M. Kaiser and P. L. Knutson). Isoquinoline Carboxylic Acids and Derivatives and Their Hydrogenated Derivatives (F. D. Popp). Isoquinolines Containing Basic Functions at the Ring and Their Hydrogenated Derivatives (I. W. Mathison). Isoquinolines Containing Basic Functions in the Side Chains and Their Hydrogenated Derivatives (F. Kathawala and H. Schuster). Isoquinolines Containing Oxidized Nitrogen Functions and Their Hydrogenated Derivatives (J. W. Bunting). Isoquinolones and Their Hydrogenated Derivatives (N. J. McCorkindale). Isoquinolines Containing One Added Ring (F. P. Hauck). Isoquinolines Containing Two Added Rings (W. S. Saari and K. Shepard). Isoquinolines Containing Three Added Rings (T. J. Schwan and H. R. Snyder, Jr.). Isoquinolines Containing More Than Three Added Rings (P. H. Grayshan and J. V. Greenhill).