Collection (2214 pages) includes 35 of Bose's notebooks containing, essentially, his calculations; the rather dismal feature of which is that they are undated, and have not been numbered. The calculations have to do with the obtaining of ergenvalues, teaching himself tensor calculus and the properties of various metrics. A large number of these notebooks are dedicated to detailed calculations; operator algebra and wave mechanics. But nowhere is there any mention of what these calculations are of--most likely these are his work sheets.