 | Abraham Gottlob Werner - 1805 - 650 páginas
...in the preceding paragraphs, there is as much difference as between night and day. Would it not be an obligation, a duty, for us to collect and leave...still worked, or in those which have been given up. CHAP. CHAP. X. AN ABRIDGED ACCOUNT OF THE PRINCIPAL METALLIC VEIN FORMATIONS WHICH OCCUR IN THE MINING... | |
 | Abraham Gottlob Werner - 1809 - 316 páginas
...in the preceding paragraphs, there is as much difference as between night and day. Would it not be an obligation, a duty, for us to collect and leave...those that are still worked, or in those which have feecn given up. CHAP. CHAP. X. AN ABRIDGED ACCOUNT OF THE PRINCIPAL METALLIC VEIN FORMATIONS WHICH... | |
 | Abraham Gottlob Werner - 1809 - 312 páginas
...in the preceding paragraphs, there is as much difference as between night and day. Would it not be an obligation, a duty, for us to collect and leave...it be in those that are still worked, or in those which:fcnre u. vanr ^ • it. ••'. • •••• m >il<fin .• • , . i ., , nw r •';' •... | |
 | Abraham Gottlob Werner - 1809 - 314 páginas
...there is as much difference as between night and day. Would it not be an obligation, a . duty, for ut to collect and leave to future generations as much...carried on in our mines, whether it be in those that are »till worked, or in those which have been given up. ..-.;••. .... •i • ,• ,:. . : , , ,... | |
 | John McClelland - 1835 - 450 páginas
...OBSERVATIONS. " Would it not be an obligation, a duty, for u> to collect and leave to futur* generations aa much instruction and knowledge as possible, on the...it be in those that are still worked, or in those that have been given up ?" — WERNER. THE subject of mining is commonly considered under two distinct... | |
 | Thomas Sopwith - 1838 - 336 páginas
...geological science. After describing the manner in which mining plans should beconstructed,and commentingon the advantages of having such plans, and also geognostic...still worked, or in those which have been given up?" Such was the opinion of this eminent geologist, whose knowledge of practical mining adds great weight... | |
 | Thomas Sopwith - 1843 - 158 páginas
...worked in them ? Yet between these documents and those which we might obtain in the way pointed out, there is as much difference as between night and day....still worked, or in those which have been given up ?' " Such was the opinion of this great geologist, whose knowledge of practical mining adds great weight... | |
 | Thomas Sopwith - 1844 - 72 páginas
...Mineral Veins, expresses his opinion of the value of Mining Records in the following emphatic terms:— " Such a collection, the plan and description of the...still worked, or in those which have been given up ?" Such was the opinion of this eminent geologist, whose knowledge of practical mining adds great weight... | |
 | Sir Benjamin Ward Richardson - 1891 - 420 páginas
...in the preceding paragraphs, there is as much difference as between night and day. Would it not be an obligation, a duty, for us to collect and leave...still worked, or in those which have been given up ? " In the beginning of April he left home for the first time for a long journey, paying a visit to... | |
 | Geological Survey of India - 1881 - 386 páginas
...out, there is as much difference as between night and day. Is it not an obligation, a duty, for us to leave to future generations as much instruction and knowledge as possible on the labours that have been carried on in our mines ?" Such was the opinion of this great geologist, whose knowledge... | |
| |
With what pains do we not rake up the old heaps of rubbish brought out of old excavations, to discover pieces which may afford us some idea of the substances which were formerly worked out ? Yet, between these documents, and those which we might obtain... 