Which two sentences in this excerpt from Ernest Shackleton's South! show the author's purpose is to reflect on memories of his experience?



The apathy which seemed to take possession of some of the men at the frustration of their hopes was soon dispelled. Parties were sent out daily in
different directions to look for seals and penguins. We had left, other than reserve sledging rations, about 110 lbs. of pemmican, including the dog-
pemmican, and 300 lbs. of flour. In addition there was a little tea, sugar, dried vegetables, and suet. I sent Hurley and Macklin to Ocean Camp to
bring back the food that we had had to leave there. They returned with quite a good load, including 130 lbs. of dry milk, about 50 lbs. each of dog-
pemmican and jam, and a few tins of potted meats. When they were about a mile and a half away their voices were quite audible to us at Ocean
Camp, so still was the air.
We were, of course, very short of the farinaceous element in our diet. The flour would last ten weeks. After that our sledging rations would last us
less than three months. Our meals had to consist mainly of seal and penguin; and though this was valuable as an anti-scorbutic, so much so that not
a single case of scurvy occurred amongst the party, yet it was a badly adjusted diet, and we felt rather weak and enervated in consequence.