Already issued or in preparation : 



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1. EDWARD S. HOLDEN. Index-Catalogue of Books and Memoirs on the Transits of 



Mercury. 



2. JUSTIN WINSOR. Shakespeare's Poems : a Bibliography of the Earlier Editions. 



3. CHARLES ELIOT NORTON. Principal books relating to the Life and Works of Michel- 



angelo, with Notes. 



4. JUSTIN WINSOR. Pietas et Gratulatio. An Inquiry into the authorship of the several 



pieces. 



5. LIST OF APPARATUS in different Laboratories of the United States, available for 



Scientific Researches involving Accurate Measurements. 



6. THE COLLECTION OF BOOKS AND AUTOGRAPHS, bequeathed to Harvard College 



Library, by the Honorable Charles Sumner. 

 *7- JAMES M. PEIRCE. References in Analytic Geometry. 

 *8. CALENDAR of the Arthur Lee Manuscripts in Harvard College Library. 

 9. GEORGE LINCOLN GOODALE. The Floras of different countries. 



10. JUSTIN WINSOR. Halliwelliana : a Bibliography of the Publications of James Orchard 



Halliwell-Phillipps. 



11. SAMUEL H. SCUDDER. The Entomological Libraries of the United States. 



12. A LIST OF THE PUBLICATIONS of Harvard University and its Officers, 1870-1880. 



13. SAMUEL H. SCUDDER. A Bibliography of Fossil Insects. 



14. WILLIAM H. TILLINGHAST. Notes on the Historical Hydrography of the Handkerchief 



Shoal in the Bahamas. 



15. J. D. WHITNEY. List of American Authors in Geology and Palaeontology. 



*i6. RICHARD BLISS, JR. Classified Index to the Maps in Petermann's Geographische 



Mittheilungen. 1855-1881. 

 *iy. JUSTIN WINSOR. A List of the most useful Reference Books. 



