The Geological Survey Of Michigan

Tlie I?ay City Tribune says: Dr. C. Boininger, State üeologist, and i Dr. S. S. (iarrigues, State Salt Inspector, lave juut buen exaniining some new sa!t boring, whieh may prove of more interest tlmu was thought of at the timo they were eommenoed. Hut wliat we wished to spi'iik of tiore, is tlie very viiluabiu service wbich Dr. Rominger is rencldring the people of this State, and egpeuially those t ihis sitution. 11,; has preparad his report on the geology of tuis región, uot trom old authorities, nor yet trom ini'ormation gathered as it happened t'roin this one and that ; but trom actual personal observatiou. To do this hu has been over the estire ground, ipending' whatevcr time was necessaiy at oaeh point where there was uu opportumty of learuing somu new thiug. The reports made trom the results of this oareful and conscientious personal exauiination will be among the most faithful and complete ever published anywhere, and will comprise, we may safely promise, a vast inass of valuable information rcgarding the geology of Lower Península, and much that will be praetioally useful in the future developmont of tuis particular séction. We muy inention as indicating the charaeter of these reports that Dr. Rominger has forined very woll-defined opinions concerning the coal basin of the State. He thinks it impossible to look for coal with assurance of success beoause the locality of the search may be withiu the limits of the coal basin. The deposit, he says, was not regular at the outset, and subsequent changes in the beds canie by means of great disturbances, furrowmg the Burface in some places, and making upheavals in others. The coal may therefore be found in what are kuown in the Western mining countries as pockets, - may be abundant in oue spot, and a short distance away none may be fouud. This subject of coal is of special interest here, because not a fow among us have long held to the belief that at some time a good coal supply would be found near the Sagiuaw ltiver, making this the point where coal could meet the iron of Lake Superior at the least cost. The State will owe Dr. Koininger much gratitude for his faithful researches, and the people of this section especially will look with interest for his reports on the rock formations, and the out-croppings of which all on the Cass River and at other neigh boring points have been regarded as of excellent promiso.