ly. The Walls that keep in the hot fpringsare very deep-fct, 
andlargcj lo. foot thick, and 14, deep from the level of the 
ftreet. The cement of the wall is tallow , clay, lime and beaten 
bricks. Inthcyear 1659. the Hot'hth(zBnh particularly fo 
call'd, of equall heat with the Kings-hath^vizs much impai- 
red by the breaking out of a Spring 5 which the workmen at laft 
found again, and reftored. In digging they came to a firm foun- 
<iation of f a^litious matter , which had holes in it like a Pumice- 
ftone, through which the water played* fo that 'tis like the 
Springs are brought together by Art; which probably was the 
Necromancy , the people of antient times believed and repor- 
ted to have contrived and made thefe Baths ; as in a very antient 
manufcript Chronicle I find thefe words: When Lud Hidibras 
tvasdeady Bladud his Son, a great Njgrmancer (fo'tis there 
writ ) was made King , and he made the wonder of the hot Bath by 
his Njgromancy ^ and he reigned 21. years ^ and after he diedj^and 
lyes At the new troy. And in another old Chronicle 'tis faidjT^^f 
King Eladud fent for Necromancers to Athens to effe^ this great bu- 
(mefs 5 who 'tis like were no other then cunning Artificers, well 
fkiird in Architefliure and Mechanicks. 
iS. It hath been obferv'd, that leaves , like thofe of Olives, 
come fometimes out of the Pump of the Hot-Bath. 
Thefe, Sir, are all the Obfervations I have been able to coIle<a 
yet : if any thing elfe material fliall hereafter come to my know- 
ledg about thefe matters , I fliall not fail to impart them, God 
permitting. Perhaps thefe things may adminifter occafion to 
more Queftions relating to the Bath, and their P^/«;7^w^;^^. If 
you or any other ingenious perfon of the R. Societ^j fhall propofc 
any to me, I fhall takewhat care I can to have them punilually 
anfwer'd. lam^^^*. 
JExtra£iof a Letter y 
Written hj Mr. Muraltus (?/ Zurich,?<? M. Haak,^ Fellow of the 
R. Society^ concerning the Icy and Chryfiallin Mountains of 
Hdvcm^ calNthe Gletfcher. EngHJlidout of Latinby the 
PublifberjO^ follows ; 
T^He higeftjcy Mountains of Helvetia about Falefia and Ja^ 
gufia, in the Canton of Bern^ about Tamininm and 
Tavetjch of the Khatians 3 are alvvayes feen cover'd with 
Snow 
