03 PHILOSOPHICAL TRANSACTIONS. [aNNO 1770- 



about 8 miles; and from hence Mr. W. infers that its longitude west from 

 Greenwich is by account 4° 2f. By his first observation 5° 8', by the second 

 4° 2Q%, and by the last 4° 48'. The true longitude of this place as determined 

 bv Mr. Bradley's observations made there (vide preface to the Nautical Almanac 

 of 1771) is 5° 15' w. and therefore the greatest error that he had committed in 

 these, is 45'-^^, and the mean of the three differs no more than 1&^ from the 

 truth ; but he apprehends the greatest error will be thought of very little conse- 

 quence in the practice of navigation. 



XIF. Observations on the State of the Air, Winds, Weather, &c. made at 



Prince of Wales s Fort, on the North- West Coast of Hudson's Bay, in the 



Years 1768 and 1769. By Joseph Dymond and William Wales, p. 137- 



These are tables of the daily state of the barometer, thermometers, winds and 



weather, during their stay at the fort. During most of the winter months, Nov., 



Dec, Jan., Feb., March, the thermometer without was considerably below the 



cypher, the lowest of all being — 45, that is, 45 below O, which was on the 



22d of January. And the highest state was + 80, viz. on the 3d of July. 



XV. Of some very Perfect and Uncommon Specimens oj Sponges from the Coast 

 of Italy. By John Strange, Esq., F.R.S. p. 179- 



Mr. S. having had frequent opportunities, during his stay in Italy, of visiting 

 the sea coasts, he was encouraged, among other researches after the antiquities 

 and natural history of that country, to collect some specimens of submarine pro- 

 ductions. On examining the south-west coast of Italy in particular, he happened 

 to meet with some very perfect and curious specimens of sponges, the descriptions 

 of which he here gives. One of these has never been described before ; and 

 since only fragments of the other two specimens have been delineated in the 

 works of the authors who mention them, he adds their respective descriptions 

 and figures. These descriptions may perhaps appear imperfect, being confined 

 merely to the figure and substance of the bodies, without any mention of the 

 polypes that inhabited them. To account for this omission, it is necessary 

 to observe that they were drawn up a few years ago, with others of the like kind, 

 at the request of Dr. Targioni Tozzetti of Florence, who designed them for an 

 appendix to a posthumous work of Micheli's, entitled De Plantis Marinis. As 

 the plan of this work was botanical, Mr. S. thought it necessary to accommodate 

 his descriptions accordmgly, though he was not inclined to his opinion about the 

 origin of these bodies. On inquiry it appears that the publication of Micheli's 

 work is very uncertain ; for which reason Mr. S. gave the following descriptions. 



Fig. 2, pi. 1. Stupose, tuberous, tubular sponge, with cylindrico conoid 



