瑞士洛桑大学的阿尔顿教授是著名的岩石学家，擅长野外地质。他在瑞士、意大利、法国交界的阿尔卑斯山中，奋斗了20多年。他曾去英国、美国、法国、意大利等许多国家考察、讲学，有着丰富的地质科研经验。阿尔顿教授应邀来华讲学，偕妻子尼古芙娜从广州人境，经桂林到成都，再? Professor Alton of the University of Lausanne in Switzerland is a famous petrographer who specializes in field geology. He has fought for over 20 years in the Alps bordering Switzerland, Italy and France. He went to Britain, the United States, France, Italy and many other countries study, lectures, has a wealth of geological research experience. Professor Alton was invited to give lectures in China, together with his wife Nicholas Fu from Guangzhou, through Guilin to Chengdu, and then?