I think it's important to note, though, that this book is really only useful for North Woods (and more northerly) winter environments, where it is consistently cold enough to keep the snow from melting all over the place.
Even the authors admit that when the going gets wet up there, there isn't much you can do about it except suffer, sealskin boots or not.
Great book, though. I'm ditching my Lowe Alpine Contour IV pack and North Face synthetic sleeping bag for a Duluth Pack, and some nice Filson wool.
_________________________
Gemma Seymour (she/her) @gcvrsa