I took this dictionary to almost all of my field experiments, it suffered water and some pink stuff i could never identify; it is warped and torn and many would have thrown it away already. But I think I will keep it for a long time. Because it made me love words and their description. And I only recently read the introduction (one page and a half, efficient writers) and understood the vision of a « useful » description of the language. This dictionary is not made for lexicographers, it really is made for geologists and passionates: by them and for them.