“Hydrostatical Paradoxes made out by New Experiments” was published by the Hon. Robert Boyle in 1666 (Oxford).
This text comes from a footnote on a diary entry in the 1893 edition edited by Henry B. Wheatley.
Boyle, Robert, 1627-1691.
Hydrostatical paradoxes, made out by new experiments, (for the most part physical and easie.) By the Honourable Robert Boyle, Fellow of the Royall Society.
Oxford : printed by William Hall, for Richard Davis, anno Dom. M.DC.LXVI. 
8vo., , 247,  p.,  folded plates, diagrams; title page in red and black, imprimatur statement on b2v.
Wing (2nd ed., 1994), B3985; Fulton, J. Boyle, #72. PL 790
Reprinted in Latin translation:
Paradoxa hydrostatica novis experimentis (maximam partem physicis ac facilibus) evicta. Authore nobilissimo Roberto Boyle, e Societate Regia. Nuper ex Anglico sermone in Latinum versa.
Oxonii : typis Henrici Hall Academiæ typographi, impensis Ri: Davis, 1669.
12mo., , 209,  p.,  folded plates, diagrams; with two final contents leaves and a vertical half-title: 'Boyl: paradoxa' hydrostatica. Includes bibliography
Wing (2nd ed., 1994), B4017; Fulton, J. Boyle, #73
Hydrostatical paradoxes, made out by new experiments ...
By Robert Boyle
Google scan of the 1663 volume.
Chart showing the number of references in each month of the diary’s entries.