532 PHILOSOPHICAL TRANSACTIONS. [aNNO J 741, 



of wind, which hardly lasted long enough for people to get out of their houses. 

 Two people, that were out in it all the time, said, that they heard it coming 

 about half a minute before they saw it ; and that it made a noise resembling 

 thunder, more continued, and continually increasing. A man came from St. 

 Ives, who says, the spire of the steeple, one of the finest in England, was 

 blown down, as was the spire of Hemmingford, the towns having received as 

 much damage as Bluntsham. There was neither thunder nor lightning with 

 it, as there was at Cambridge, where it lasted above half an hour, and conse- 

 quently was not so violent. Some few booths in Sturbridge-fair were blown 

 down. The course of the storm was from Huntingdon to St. Ives, Erith, be- 

 tween Wisbeach and Downham to Lynn, and so on to Suetsham. Very few trees 

 escaped: the barns that stood the storm, had all their roofs more damaged to 

 the leeward side than to the windward. The storm was succeeded by a pro- 

 found calm, which lasted about an hour; after which the wind continued pretty 

 high, till 10 o'clock at night. 



Concerning the Remains of a Roman Hypocaustum or Sweating-room, discovered 

 under-ground at Lincoln, Anno J 739- By Mr. T. Sympson. N°46], p. 855. 



Some labourers being employed to dig a cellar in an outhouse, fronting the 

 west end of the Minster, and adjoining to the Chequer-gate, they found 1 or 



3 stone coffins, which had probably lain there ever since the demolition of the 

 ancient parish church of St. Mary Magdalen, to make way for the foundation 

 of the cathedral, and its appendages; but going lower, about 10 or 11 feet 

 deep, they found some building; and at 13 feet they struck into the corner of 

 a vault. Mr. Sympson took it to be a Roman hypocaustum ; he had the dimen- 

 sions of it taken, as in the plan, pi. 13, fig. 1, and the profile, fig. 2. 



A is the praefurnium, stoking-place, entrance or place where the fornacator, 

 the stoker, stood to manage the fire. It is 3 feet 6 inches square, its height 

 not certainly known, because of the rubbish which lay at the bottom. 



B, the fornax, furnace, or fire-place, built of brick, and arched over with 

 the same. Its length from e to g, 5 feet 6 inches ; its height 3 feet at e, but 



4 feet at p, rising gradually; 3 feet 6 inches long from e to p, and 1 feet wide 

 between e and f; 1 feet long from p to g, and but 19 inches wide between p 

 and G. 



c, the alveus, or body of the kiln, 21 feet 4 inches long; 8 feet 4 inches 

 broad; and 1 feet 4 inches high. The floor is made of a strong cement com- 

 posed of lime, sand, brick-dust, &c. which the masons of that country call 

 terrace-mortar. On this floor stand four rows of low pillars, made of brick, 

 II in a row; the outside rows round, the two inner rows square; the round ones 



