. . "ence shall, except by leave of the High Court, be admitted of any infringement or on any objections of which particulars have not been so delivered in terms of paragraph (c) or (d); ( f ) the High Court may allow the patentee to amend his specification, subject to such terms as to costs, advertisement or otherwise as it may impose and to the provisions of subsection (3) of section thirty-seven. (3" . .