(47)Only gradually was the by-product of the institution noted, and only more gradually still was this effect considered as a directive factor in the conduct of the institution. 此处译文为：

【结构分析】
Only gradually was the byproduct of the institution noted, and only more gradually still was this effect considered as a directive factor in the conduct of the institution.
这是一个并列句，两个并列分句都是部分倒装的形式(only加上副词置于句首的部分倒装)，前半句为only gradually置于句首的倒装，正常语序为The byproduct of the institution was noted only gradually;后半句为only more gradually still置于句首的倒装，正常语序为and this effect was still considered as a directive factor in the conduct of the institution only more gradually.
【词义推敲】
By-product 副产品
【翻译润色】
Only gradually was the byproduct of the institution noted慢慢的，社会机构的这种副产品才被人们注意到
and only more gradually still was this effect considered as a directive factor in the conduct of the institution而要把它作为机构运行的指导性因素，则更加缓慢得多
【参考译文】
慢慢的，社会机构的这种副产品才被人们注意到，而要把它作为机构运行的指导性因素，则更加缓慢得多。