Section 17. While a tax assessed accord'ing to the circum

17. While a tax assessed accord'ing to the circum- Restriction of power of tax- stances, and the property to be protected, of the per- &tion in can- sons liable thereto, .or according to the annual value tonmanta `iq` whioh Act of i~ouses -and grounds, is levied under the Bengal x x o f 1856 `is EN` of `1856.` Chaukidari Act, 1856, in a cantonment, a tax on in force. persons practising any profession or art or carrying on any trade or calling or a tax on buildings and lands, `as` the case may be, shall not be leviable in the cantonment in pursuance of a not1'fication under section 15 of this Act.