Microforms
Sometimes it is difficult to locate microforms in HOLLIS. Try searching on the name of the holding library in the Creator field, or on the shelf number of the original item as a keyword.
There is an annotated photocopy of the Grove article "Sources, MS. II.5. Western plainchant, 12th century" in the Keeper's desk (bottom drawer) with pencilled-in annotations of Isham call numbers for those items Isham owns in reproduction.
A large gift of microfilms was presented to Isham by Professor John Milton Ward IV. There is a blog post about these here: http://blogs.harvard.edu/loebmusic/2011/01/05/john-ward%e2%80%99s-treasure-trove-of-microfilms/ The post includes a PDF inventory.
Microfilms sent by Yale for the 2008-2010 Mellon-funded cataloging project are now shelved in rows 4A of the Cage. There is an inventory in SharePoint.
Manuscripts
Here are some ideas for how to discover music manuscripts at Harvard:
- have someone at Houghton check the Theatre Collection Autograph File
- look it up in Chadwyck-Healy
- look it up in Barbara Marienholz-Wolff's Music Manuscripts at Harvard