48 PHILOSOPHICAL TRANSACTIONS. [aNNO 1713. 



wood last Christmas, to observe from whence she fetched her provision ; which 

 he soon discovered in a hollow tree, and cutting the place open, brought from 

 thence several pints of very choice nuts. 



I met with a nest of the regulus cristatus,* in a thick thorn hedge, in my own 

 orchard, which was built round, and a small hole at the side ; the outside was 

 green moss, the inside hair and feathers, not much unlike that of the common 

 wren. The eggs were small and white, with many brown spots on them. The 

 note of the cock is very agreeable, not much unlike some of the parus kind. 

 I do not remember that I have seen any of these birds in summer before. 



Cochlea pomatia majoredul is G^sneri.-f- I never met with it in the north ; but 

 I found it in plenty last year about the middle of May, in Stunsfield fields, 

 among the briers and brakes, especially near the famous Roman pavement. 



Epistola Nicolai Facile R. S. L. S. ad Fratrem Joh. Christopk. Factum diet. Soc. 

 Sod. qua vindicat Solutionem suam Prohlematis de Inveniendo Solido Rotunda 

 sen Tereti in quod Minima Jiat Resistentia. N" 337, art. IQ, p. 172. 



[This intricate mathematical paper, of a controversial nature, could be of no 

 use here, unaccompanied by the others, to which it refers, and which were 

 published elsewhere. 



About this time, it was very much the fashion for the English and the con- 

 tinental mathematicians to propose intricate problems to each other, as trials of 

 skill, which often ended in violent controversies, and bitter aspersions. Mr. 

 Nicolas Facio, though a native of Switzerland, from long residence in England, 

 took part with the mathematicans of this country, and was of course obnoxious 

 to those of the continent. This gentleman having published a small tract, con- 

 taining a solution of the problem of finding the solid of least resistance, it was 

 criticised in the Leipsic acts by Mr. John Bernouilli, and explained by the 

 author in the same work, and here in this paper still further explained and de- 

 fended. But which is now quite uninteresting, both in its own nature, and 

 from the insulated situation in which it is placed.] 



Botanicum Hortense 3. -^Giving an Account of divers Rare Plants, observed this 

 Summer, A.D. 1713, in several curious Gardens about London, and particU" 

 larly in the Society of jipothecaries Physic Garden at Chelsea. By James 

 Petiver, F. R. S, N° 337, art. 20, p. J77. 



[Contains a short account and character of 1 61 of those rare plants, in a con- 

 * Motacilla Regulus. Linn. f Helix Pomatia. Linn. 



