Re #10: A top LAC geosciences department will offer ~20 courses on an annual basis, and another ~10 courses on a biannual basis. Since a concentrator will commonly enroll in one or two geosciences courses per semester, choices for an individual student are deep and varied. If inherent limitations restrict the choice of taking Field Study in Iceland, an available geosciences course at one LAC, to alternate years, the student will simply plan around this, and ideally will be appreciative of having an oopportunity which may not be available elsewhere. By ease of scheduling generally, I meant that 1) courses at a well-resourced LAC are unlikely to be closed for reasons such as over or under-enrollment and 2) combining course selection in geosciences with that, say, in a subject like history, where 50 or more courses are offered annually, should not be a problem in most cases.