$4 PHILOSOPHICAL TRANSACTIONS. [anNO 1684. 



many things prescribed him by physicians and surgeons, but to no purpose. — 

 I applied a cupping-glass to the place with fired flax in it ; then scarified, and 

 cupped him again ; after which I put on a plaster of diapalma, and he was per- 

 fectly cured. 



I was consulted by a maid, who had a pustule broke in her eye, out of which 

 there came fine small sand, like chalk, for many weeks together. By the use 

 of purging, fumigation, and some topics, she recovered her sight in a very 

 great measure. 



j4n Ingenious Proposal for a new Sort of Maps of Countries, tvith Tables of 

 Sands and Clays, such chiefly as are found in the North Parts of England, 

 .drawn up about Ten Years since, and delivered to the Royal Society March 12, 

 l683. By Martin Lister, M.D. N° l64, p. 739. 



We shall be better able to judge of the formation of the earth, and of many 

 phsenomena relating to it, when we have duly examined it, as far as human art 

 can possibly reach, beginning from the outside, downwards. As for its more 

 inward and central parts, I think we shall never be able to confute Gilbert's opi- 

 nion, that it is altogether iron.* And for this purpose it were adviseable that a 

 soil or mineral map, as I may call it, were devised. The same map of England 

 may, for want of a better, at present serve the turn. It might be distinguished 

 into countries, with the rivers and some of the noted towns put in. The soil 

 might either be coloured by a variety of lines or etchings ; but great care must 

 be taken very exactly to note on the map, where such and such soils are 

 bounded. As for example, in Yorkshire, 1. the woods, chalk, flint, and py- 

 rites, &c. 1. Blackmoor, moors, sandstone, &c. 3. Holderness, boggy, turf, 

 clay, sand, &c. 4. Western mountains, moors, sandstone, coal, ironstone, 

 lead ore, sand, clay, &c. Nottinghamshire, mostly gravel, pebble, clay, sand- 

 stone, hall plaster, or gypsum, &c. Now if it were noted how far these ex- 

 tended, and the limits of each soil appeared on a map, something more might 

 be comprehended from the whole, and from every part, than I can possibly 

 foresee, which would make such a labour very well worth the pains. For I am 

 of opinion such upper soils, if natural, infallibly produce such under minerals, 

 and for the most part in such order. But I leave this to the industry of future 

 times.'l' 



I shall entertain you at present with a scheme of sand, and another of clay, 



* De Magn. lib, 1, cap, 17. Tellus in interioribus partibus magneticam homogenicam naturam 

 habet. — Orig. 

 •J- This b a very ingenious proposal. 



