(a)the [seven] [Substituted by Act 17 of 1922, Section 2, for "six".] persons for the time being performing duties of the following offices, namely :-(i)the Accountant General of [West Bengal] [Substituted by the A.O. 1948 for "Bengal".];(ii)the Principal, Government School of Art, Calcutta;(iii)the Director, Geological Survey of India;(iv)[ the Director, Zoological Survey of India] [Substituted by Act 17 of 1922, Section 2, for the original sub-clause.];(v)the Director General of Archaeology; [***] [The word "and" rep, by Section 2, for the original sub-clause.](vi)[ the Superintendent, Archæological Section of the Museum; and] [Inserted by Act 17 of 1922, Section 2, for the original sub-clause](vii)[] [The original sub-clause (vi) was renumbered (vii) by Section 2, for the original sub-clause.] the Officer in charge of the Industrial Section of the Museum;