These careful culturists had worked out a perfect scheme of refeeding the soil with all that came out of it.

All the scraps and leavings of their food, plant waste from lumber work or textile industry, all the solid matter from the sewage, properly treated and combined--everything which came from the earth went back to it.
The practical result was like that in any healthy forest; an increasingly valuable soil was being built, instead of the progressive impoverishment so often seen in the rest of the world.
When this first burst upon us we made such approving comments that they were surprised that such obvious common sense should be praised; asked what our methods were; and we had some difficulty in--well, in diverting them, by referring to the extent of our own land, and the--admitted--carelessness with which we had skimmed the cream of it.
At least we thought we had diverted them.

Later I found that besides keeping a careful and accurate account of all we told them, they had a sort of skeleton chart, on which the things we said and the things we palpably avoided saying were all set down and studied.

It really was child's play for those profound educators to work out a painfully accurate estimate of our conditions--in some lines.

When a given line of observation seemed to lead to some very dreadful inference they always gave us the benefit of the doubt, leaving it open to further knowledge.
Some of the things we had grown to accept as perfectly natural, or as belonging to our human limitations, they literally could not have believed; and, as I have said, we had all of us joined in a tacit endeavor to conceal much of the social status at home.
"Confound their grandmotherly minds!" Terry said.