Spencer, H. (1904). A parliamentary survey. In H. Spencer, An autobiography, Vol. 1, pp. 294-311). New York, NY, US: D Appleton & Company.
http://dx.doi.org/10.1037/13694-016
In this chapter, the author discusses his involvement with a parliamentary survey in 1844. You must know that, something like a fortnight ago, Mr. Hughes (whom you probably remember as my old superior on the B. and G. Railway), called on me at The Pilot office, and told me that he had heard from Edmund Sturge that I was in Birmingham, and that he had called to know whether I could come and assist him in making a survey of a branch from the B. and G. Railway to pass through Droitwich, Kidderminster, Stourbridge, Dudley, and terminating at Wolverhampton. After thanking him for the offer I told him that I was then engaged with Mr. Wilson, and that, even did I think it desirable, I could not honourably leave him without due notice; and, as he wanted me immediately, I was compelled to decline the offer. This I did the more readily as the engagement was only a temporary one, consequent upon the making of the parliamentary survey, which has to be concluded by the end of November. And so here I am booked for a month's hard work in surveying and levelling. I am to be paid at the usual rate for such work, namely a guinea a day and my expenses paid, so that I shall be able to get a little stock in hand by the undertaking. I daresay a month's out of door work will do me no harm, either, on the score of health. Not that I was wanting it, for I have been very well ever since I left home. (PsycINFO Database Record (c) 2016 APA, all rights reserved)