ARTESIAN WATER IN THE STATE OF QUEENSLAND, AUSTRALIA. 195 



as though it were everywhere applicable. Everyone said, " Oh, 

 why don't you adopt artesian boring and get water ? " where it 

 was not to be found. If the geological conditions that are 

 necessary for artesian boring were brought a little more fully 

 into view, so as to lead one to see exactly where artesian boring- 

 can be practised with useful effect, I think the paper would have 

 a very useful application indeed. 



Dr. Logan Jack. — While the things are fresh in my memory, I 

 had better begin with, the last question and work back. Of 

 course the paper might have been made very much more useful, 

 and might have gone into greater detail, but for the necessity for 

 fixing a limit to its length. It was not intended to cover the 

 whole world with information regarding artesian water. In the 

 first place, I was not competent to give such information, and, 

 secondly, I was afraid it would have very much tired the patience 

 of the meeting if I had gone over too much ground. But there 

 are many ways in which the question might be answered to some 

 extent. To begin with, if anybody put such a question to me as, 

 " Is there artesian water in this particular land, in the Cape ot" 

 Good Hope or elsewhere ? " such a person should in the first place 

 procure the best geological map of the district available, and 

 should study especially the contour which the outcrop of the 

 different strata took, and mast consider where permeable beds 

 come to the surface, and whether those permeable beds are 

 covered by impermeable beds, which would keep the water carriedi 

 down by them under such conditions that it could only be 

 liberated by penetration by the boring rod. That is where the 

 geologist comes in. Of course I might go to such a new country 

 and give special attention to the question of artesian water. 

 Geological maps are constructed for what they are worth, though 

 they serve many purpDses, among others that of throwing light 

 upon artesian water. But it is not necessary to map out a 

 district specially with a view to the bearing of the map upon the 

 question of artesian water. Such mapping might very usefully 

 be done specially with that object in such countries as have been 

 referred to, such as the Cape of Good Hope. Another question 

 was asked, as to whether artesian water could be expected in. 

 Western Australia. That question is of very considerable 

 importance to Western Australia, and again, it is very much a. 

 question of mapping, but I think I can answer that where it is 



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