The farmers are impressed with how well the farm is run.
The farmers vow to implement the same kinds of systems.
In the excerpt from "Animal Farm," by George Orwell, Mr. Pilkington mentions human farmers were at first apprehensive about a farm managed by pigs and feared the consequences on their own animals and humans. However, after inspecting the entire Animal Farm, they are fascinated about the conduct and organization of it, and are determined to implement several methods of it on their own farms.
In the middle because if the red house is on the left of the middle (remember the middle one is possibly white) and the blue house is on the right from the middle it would leave the option of the middle house to be in the middle hope this makes sense :)
