the 1559 update of the Institutes retain the weekly position.
Could you provide a quote/reference? My paper (#64 posted above) tries to show how Calvin's position changed over time. In the 1559
Institutes, Calvin states that it "was the practice of the apostolic church.... that no meeting of the church should take place without the Word, prayers, partaking of the Supper, and almsgiving" (IV, xvii, 44). But he doesn't endorse reverting to that practice. I think it might be misinterpreting/misapplying Calvin’s comments to use this to show he still favored daily/weekly administration as he did when he was younger - his main interest at this point in the
Institutes is to condemn the Romanist position of partaking only once a year: "Plainly this custom which enjoins us to take communion once a year is a veritable invention of the devil." (Ibid. 46). Calvin does not say that the Lord's Supper
should be observed weekly, but that, in the 2nd and 3rd century, it should not have become so infrequent: "It
should have been done far differently: the Lord's Table
should have been spread at least once a week for the assembly of Christians." (Ibid. emphasis mine) Again, it is more likely a misinterpretation/misapplication of Calvin’s comments here to say that he was proscribing weekly communion when he was simply refuting what he saw to be the error of Romanist tradition: "Not unjustly, then, did I complain at the outset that this custom was thrust in by the devils' artifice, which, in prescribing one day a year, renders men slothful the rest of the year." (Ibid.) This is the only part of the
Institutes that I know of where Calvin discusses the frequency of the Lord's Supper. In context, he is not arguing for it be weekly. Rather, he is arguing that once a year is not frequent enough. Regardless, there is sufficient testimony during the "second reformation" that seasonal observance of the Lord's Supper was the preference in most of Europe's Reformed churches, with the exception of some groups such as English Congregationalists (thus the use of nothing more specific than the term "frequent" in the Westminster Standards - the English could interpret that as weekly while the Scots could interpret quarterly as frequent, and both would be correct versus the Romanist view that congregants only had to partake once a year).