to private franchises identical rules respecting by-laws made at a court leet. In the case of the royal colonies, where the manner of government depended upon the commission to the governor, the effect of the clause requiring laws to be agreeable to those of England is obscure. Pownall 9 asserts that the constitution in these colonies rested upon the commission and instructions, a suggestion followed by Blackstone 10 and later by Mansfield in Campbell v. Hall. 11 This notion is already implicit in a 1721 report to the Council 12 respecting the various continental colonies, but the word "constitution" is there used probably only in the sense of governmental structure, not as Pownall employed it in the broader philosophical sense of something upon which political rights depended. If the governor's commission is to be treated simply as any other type of English commission, the restriction laid down in the early seventeenth century 13 that commissions had to be exercised pursuant to English law was applicable, and the basis for treating as void laws passed in despite of the limitation existed in the common law. It is not to be assumed that the matter just discussed was long out-moded black-letter learning, of no concern to the gentlemen at Whitehall. The moves by Charles II and his advisers against the chartered boroughs and in particular the assault on the City of London (1681-83) infused the ancient precedents with fresh vitality and served to make the matter of by-law power and its exercise an issue which excited the greatest public attention. 14 This interest did not abate until some time after the Revolution of 1688 and contributed to the general sentiment that curbs against "illegal" exercise of authority had to be found. The measures taken by statute to control colonial legislation may be viewed as a part of this reaction. The basic statutory regulation, and the source of administrative declarations of nullity, was the ninth section of the so-called Act for Preventing Frauds, and Regulating Abuses in the Plantation Trade (7 and 8 Wm. 111, c. 22 [1696]). It was there enacted "that all laws, by-laws, usages or customs, at this time, or which hereafter shall be in practice, or endeavoured or pretended to be in force or practice, in any of the said plantations, which are in any wise repugnant to the before mentioned laws, or any of them, so far as they do relate to the said plantations, or any of them, or which are any ways repugnant to this present act, or to any other law hereafter to be made in this Kingdom, so far as such law shall relate to and mention the said plantations, are illegal, null and void, to all intents and purposes whatsoever." 9 The Administration of the Colonies (2d ed., 1765), 54-55- use of "constitution" in a January 23, 1733/4, representation of the Board of Trade to the House of Lords {Add. MS, 35,907/51). 13 12 Co\e Rep. 19, 50. 10 1 Commentaries, 108. 11 20 Howell, State Trials, 300. 12 5 Doc. Rel. Col. Hist. N.Y., 591 et seq. See particularly ibid., 595, 606, 627. See also the 14 Cf. 8 Howell, State Trials, 1039 et seq.