A few days after the funeral of the uncle Thomas, Purcell had occasion to rejoice in the birth of a son and heir; the child was baptized in Westminster Abbey, receiving the names of John Baptista, probably a mark of friendly regard for the well-known musician, John Baptist Draghi,[29] but the infant survived only a few months and was buried with his kindred in the Abbey cloisters. There is a volume of music in the handwriting of Henry Purcell in the Fitzwilliam Library at Cambridge, containing an entry which is worthy of note in this place as showing the serious tone of his mind at that period: at the end of an anthem he has written, "God bless Mr. Henry Purcell. September yᵉ 10th, 1682." In the following year Purcell ventured on his first publication, for which he solicited subscribers. His prospectus or proposals are lost, but the following advertisement from the _London Gazette_, May 24th, 1683, throws much light on the subject:-- "These are to give Notice to all Gentlemen that have subscribed to the Proposals Published by Mr. Henry Purcell for the Printing his Sonata's of three Parts for two Violins and Base to the Harpsichord or Organ, that the said Books are now completely finished, and shall be delivered to them upon the 11th June next: and if any who have not yet Subscribed, shall before that time Subscribe, according to the said Proposals (which is Ten Shillings the whole Sett), which are at Mr. Hall's house in Norfolk-street, or at Mr. Playford's and Mr. Carr's shop in the Temple; for the said Books will not after that time be Sold under 15_s._ the Sett." Again on the following June the 7th, another advertisement appeared in the _London Gazette_:-- "Wheras the time is now expired, this is therefore to desire those Persons that have subscribed to Mr. Henry Purcel's Sonata's to repair to his house in St. Ann's Lane beyond Westminster Abbey, or to send Proposal-Paper they received with the Receipt to it when they Subscribed, and those who subscribed without a Paper or Receipt to bring a Note under the Persons Hand to whom they Subscribed, that there may be no mistake, and they shall receive their Books, paying the remainder part of the money." Judging by the extreme rarity of the work, the subscription list must have been a poor one, and as the price charged was only ten shillings for the completed work, Purcell must have been considerably out of pocket, when he came to balance his accounts after paying the engraver and printer; the former was the celebrated copper-plate engraver, Thomas Cross, junior. The title of the work reads thus: "Sonnata's of III parts. Two Viollins and Basse to the Organ or Harpsichord. Composed by Henry Purcell, Composer in Ordinary to his Most sacred Majesty, and Organist of his Chappell Royall, London. Printed for the Author, and sold by J. Playford and J. Carr at the Temple, Fleet St. 1683."