Kevin J SmithKevin is a professional geologist retired after 30 years with Shell Oil company and Royal Dutch Petroleum. Current interests, aside from Geology, include Birding, Crystal Radio, History, Heraldry, and Atmospheric Geophysics. All interests pursued arestudied, documented and published where possible. Kevin's publications include his MS Thesis on the Precambrian basement of SW Montana, a technical Handbook on Crystal Radio, and four volumes concerning the Heraldry of the province of Alsace, France. Read More Read Less