1817-3 Mr. Jennings on Geology ^"^ A Blind Jockpy. 519 



aid of water, as a medium of promoting \n^ lighter, remains suspended longer, 



the optratioii of chemical aliinity — but forming-, j(s it constantly docs, a deposit 



this bj tlic way. above the sand. > ; ;•/-:' 



I iiavc many reasons for believing, These observations must, in>my vfeW 



that, when any thing like probaliilily of the*M, go still farther to confirm what 



can be ohtainol upon so nncerlain a 1 have before said (sec vol. >;li. p. ^\^y, 



subject as the question of the rise of the relative to the rise of the ocean : 1 unt, 



ocean, that the rise of the land will ra- notwithstanding, disposed to l!iink tJ«at 



Ihcr be proved from the result of tlje in- tiie northern hemisphere of our jflolj* 



vestigation. has, at some viry distant period, beoa 



In tlie level between the Bristol wholly covered with water, and inclin* 



Channel and (ilastoubury are several to the hypothesis of your correspor)dont 



banks of sand, covered v/ith from one to Conunon Sense ralhtr than that of Mr. 



th<ee teet of earth, considoraijly above Middleton ; but botli, as mere hypothe- 



the lev« i of Uie si-a, but which liave Lijen ses, cannot be taken into the account ii| 



once uaquestionali'y covered with salt an argument of facts, 

 w-ater — as the r •.sstant and freijui'iit Jamfs Jennings.-"! 



presence of sea-shells, in tlicir natural Hunt spill ; Nov. 181G. i !i.u;:jgf7i 



state, most decidedly evinces; v.hich ^ .,.i : ^. ;. 



would, prima facie, indicate that the sna 2o the Editor of the Monthly MagaziAef 

 imist have been unieh liis'her once than sm, 



it is now, contrary to the opinion of Mr. "ff SAW in a lato paper an account^ 

 JVIiddleton. However, 1 think, »vit;iout JL of wondcri'nl performances by 'n'- 

 coiktending for the opposite hypotliesis, blind ladj'. Within ten miles of my 

 that tlie cause of the height of these residence, tliere lived many years a 

 sand-banks can be shown. We find, horse-jockey, quite bereft of sight sinca 

 upon examining them, that the upper his second year, wlien he had the small- 

 parts, in ]>articnlar, contain a consider- pox. He knew the good properties or 

 able quantity of small stones, of various defects of a horse by feeling all over hi.'i 

 shaj)es and dimensions, mostly longitu- frame, ai.vl gave a remarkable proof of 

 dinal ; their composition is sand, and, I aculeness, in discovering a fine h.ors** 

 believe, carbonate of lime, for I have was blind of one eye, a failing never 

 not analysed them ; but I know that the suspected by his purchaser. The gen- 

 waters, from the springs flowing throngli tleman had bought tho horse at Edin- 

 tliem, contain a large quantity of that burgh, and on his way home put up at 

 ingredient; so that these stones .are a spe- tlie inn kept by William M'Gilvray's 

 cies of crystallization. Now tho effect father. lie desired the sightless jockey 

 of such crystallization, and addition of to go out, and examine his rcceut bar* 

 carbonate of lime, is, ill my humble opi- gain, extolling the handsome figure, i,._ 

 nion, the cause of a considerable in- the mettle, and docility of the animal,;/ 

 crease ia the volume of the said banks, M'Gilvray returued in half an bovii^ ,. 

 and of eoinse of their height ; perhaps of sttying, " the horse vyas all that could \te,<-i 

 as much from their first deposit as ten or wished if he could see with both eyes."^,., . 

 fifteen feet, for we find that no sand is " How do you know be does not see?" * 

 deposited in or about the mouth of the said the gentleman. "I ha%'e passed' ; 

 1-JiVer I'arret at less than from fiiteen to my hand over and over that side of his 

 twenty feet below the level of the ad- head (said he,) and his eye-lids never 

 joiiinig land, except what is blown upon flinch, but on the other side they close . 

 the shore by the winds. 'I'he sand be- instantly." The horse was lonml to 

 iiig. Of coinse, of greater speerfic gravity be really blind of one eye, and a biinil 

 thaiV clay, it will be deposited from the man was the first to perceive the iin-ij-, 

 xvatvr first and below ; and the clay, be- perfection. N, C, 



^jQlUNtfCOFIA. V 



ALCli!!Ai>BS.- nige and animate irln?r^'YAii<!o''^(^',' 



ALCIBIADKS. whenayonng man, car' much for that cohfer?" said he, ■' 

 Lad to struggle with a strojig ner- f!an:i:iV'him. Alcibiades agree<l.— " Or 

 tons terror pn eiiti'iiijg the assemWy of that piblic crivr,?" resumed Socrate.<!j''-" 

 tlic people, Sou>tvs tfiodijB ^ittou- . "or Umt teut maker?" Tlie sun of €iii-a 



