Calendar: 1974-1975 Page 463

lxxxii Annual Report of the Delegacy Nigeria Kaduna to conduct one-month training course for labora- tory technicians under the auspices of the Overseas Development Administration In July he visited the General Mineral Exploration and Mineral Development Corporation of Greece on behalf of the Organ- isation for Economic Cooperation and Development Paris to discuss future technical assistance He contributed to one-day Symposium held by the Metropolitan Police and the London Fire and Ambulance Service on 'Hazchem' new system for combating fire in chemical containers and load transporters Field courses in Exeter Brittany and Normandy Lulworth Angle- sey Skye and the Forest of Dean were held during the year The Lyell Club enjoyed one day field courses and the College field centre at Rogate was again good base for other courses The Lyell Club again had busy and interesting year with full programme of lectures and field classes The Seventh Taylor Memorial Symposium entitled 'The Geologist and the Environment' was held on February 14th Professor Shotton was in the chair and speakers included Mr Archer Dr Howett Mr Morgan Mr Searle and Professor Prentice Staff and students from universities attended department of mathematics Number of Students Sc Special 53 Sc Joint Honours 67 Sc Ancillary 92 Sc Engineering 198 Postgraduate 34 Departmental Notes Professor Frohlich was appointed Visiting Professor under the auspices of the British Council and the Indian University Commission at the Advanced Study Institute for Mathematics Panjab University Chandigarh India for six weeks in Autumn 1972 He gave series of seminars on quadratic forms and on the Artin L-function at Chandigarh and colloquium on classfield theory at the University of Kurukchetra India He gave invited addresses to the British Mathematical Collo- quium 1973 held at the University of Manchester to the Journees d'Arithmetiques at Grenoble France to the conference on algebraic fields in Rome to the conference on algebraic K-theory at Les Plans