PHILOSOPHICAL TIIANSACTIONS. [aNNO 1672. 



jin Accurate Description of the Lake of Geneva, not long since inade by a Person 

 that had visited it divers Times in the pleasantest Season of the Year-, and com- 

 municated to the Ptiblisher by one of his Parisian Correspondents. Translated 

 by tJw Editor. N° 86, p. 5043. 



Instead of reprinting the description here given from the original Transac- 

 tions, we think it better to refer our readers to the description of this lake as 

 given by that accurate Swiss naturalist De Saussure, (Voyages dans les Alpes et 

 Hist. Naturelle des Environs de Geneve) and to the travels of our countryman 

 Mr. Coxe. 



An Account of some Books. N° 86, p. 5047. 



I. Lux Mathematica, Collisionibus Johannis Wallisii et Thomas Hobbesii 

 fcxcussa: Multis et fulgentissimis aucta radiis, Auth. R. R. Adjuncta Censura 

 Doctrinae Wallisianae de libra, una cum Roseto Hobbesii. Lond. 1672, 

 in 4to. 



The author of this book (probably Mr. Hobbes himself) states that he has 

 deduced the rise and occasion of the disputes between Dr. Wallis and Mr. 

 Hobbes, and commended the many and difficult propositions and demonstra- 

 tions said to be advanced by the latter of them, and compared these with those 

 of Dr. Wallis. He then proceeds to the controversies themselves, endeavouring 

 to vindicate Mr. Hobbes's assertions from the objections of Dr. Wallis. 



II. Optique de Portraiture et Peinture, contenant la Perspective Speculative 

 et Pratique accomplie, &c. Par Gregoire Huret, Desseignateur et Graveur or- 

 dinaire de la Maison du Roy, et de I'Academie Royale de Peinture et Sculpture. 

 A Paris, 1670, in fol. 



This elegant volume in French states the chief aim of its author to have 

 been, to contribute what he could to the instruction and improvement of youth, 

 studious of these excellent arts, and groundedly to teach them the rules and 

 other means, that are really useful and absolutely necessary to them in the 

 same. 



III. Christiani Friderici Germani, Physici Chemnicensis, Academici Curiosi, 

 Homo ex ovo. Chem. 1672, in 4to. 



This author having collected what has of late years been asserted and pub- 

 lished concerning the generation of other animals, as well as of fowl and fish, 

 out of eggs; and taken with Kerkringius particular notice, tam virgines quam 

 conjugatas saepissime ova excernere (which he no more wonders at, than that 

 hens and other birds are matres et tamen virgines) then proceeds to consider the 



