335 



Solarium p8eudo-p€rsi)ectivuin, Brocchi. 

 umbrosuni, Brongniart. 



niillegranuiii, Lamarck. 



canaliculatuni, Lamarck. 



In illustration of his paper.M. Michelotti has sent drawings of 

 each of the species he describes, in three different positions, so as 

 to shew all the characters of the shell. The references to au- 

 thors who have mentioned the species (or synonyms) seem very 

 complete 



The following Donations were presented : — 

 Journal of the Asiatic Society of Bengal. No. 100. 1840._5y 



the Society. 

 Mittlere Vertheilung der Warme auf der Erdoberflache, nebst 



Bemerkungen iiber die Bestimmung der mittleren Tempera- 



tur. Von Wilhelm Mahlraann— J?j/ the Author. 

 Memorie della Reale Accademia delle Scienze di Torino. (Serie 



Seconda). Tomo n.—By the Academy. 

 Philosophical Transactions of the Royal Society of London for 



the year 1840. Parts 1, 2.— By the Royal Society. 

 Proceedings of the Royal Society 1840. Nos. 41, 42, 43, 44, and 



45. — By the Royal Society. 

 Report of the Ninth Meeting of the British Association for the 



Advancement of Science, held at Birmingham in August 



1839. By the British Association. 



A Supplementary Report on Meteorology, presented to the Meet- 

 ing of the British Association in 1840. By Professor Forbes. 



— By tJic Author. 



5th April, 1841. 



Sir T. M. BRISBANE, Bart., G. C. B., Pres., in the Chair. 

 1. On the Parallel Roads of Glen-Roy, with an Examination 

 of Mr Darwin's Theory of their Formation, Part II. By 

 Sir T. D. Lauder, Bart. 



This paper consists of a critical investigation of a recent 

 paper by Mr Darwin upon this subject, and the author's object is 

 to prove that Mr Darwin's views are untenable ; and that his own 

 explanation of the appearances in Glen-Roy, given in his paper 



