44 Capt. E. Sabine's Notices occasioned by the 



101. Ammonites vulgaris. Bradford clay. N. of Fr. (Bobl.). 



102. coronatus. Oxford clay? N. ofFr. (Bobl.). 



103. Humphresianus {Sow ). Lias. S. of Fr. (Dufr.). Inf. 



oolite. Sherborne (Sow.). 



104. Parkinsoni (Sow.). Lias. Bath (Sow.). 



105. Gulielmii (Soiv.). Oxford clay. S. Engl. (Sow.)- 



106. Davsei (Sow.). Lias. Lyme Regis (De la B.). 



107. planorbis (Soiv.). Lias. Watchet, Somerset (Sow.). 



108. ■ Johnstonii (Soiv.). Lias. Watchet, Somerset (Sow.). 



109. corrngatus (Sow.). Inf. oolite. Dundry (Braikenridge). 



110. rotiformis (Sow.). Lias. Yeovil (Sow.). 



111. multicostatus (Sow.). Lias. Bath (Sow.). 



112. lgevigatus (Soiv.). Lias. Lyme Regis (De la B.). 



113. lataecosta (Sow.). Lias. Lyme Regis (Murch.). 



114. Murchisonas (Sow.). Micaceous sandst. Holm Cliff, 



Western Islands, Scotl. (Murch.). Inf. oolite. Allington, 



near Bridpcrt (Murch.). 

 Ammonites, species not mentioned. Coral rag, great oolite. Norm. 



(De C). Lias, inf. oolite, Fuller's earth. N. of Fr. (Bobl.). 



Kim. clay. Yorks. (Phil.). 



[To be continued.] 



VIII. Notices occasioned by the Perusal of a late Publication by 

 Mr. Babbage. By Capt. Edward SA.mNE,Roy.Art. Sec.R.S. 



To the Editors of the Philosophical Magazine and Annals. 

 Gentlemen, 

 "VTOUR insertion in the Philosophical Magazine of the fol- 

 ■*■ lowing notices, occasioned by the perusal of Mr. Bab- 

 bage's book, will oblige me. I regret that this communication 

 was not in time for your Magazine of last month ; but not hav- 

 ing been able to obtain an extension of my leave of absence, 

 which expired on the 30th of May, and being under the neces- 

 sity of leaving London in order to join my regiment, it was not 

 in my power to prepare it sooner. I am, Gentlemen, 



Your obedient servant, 

 Charlemont, Ireland, June 6, 1830. Edward Sabine. 



1. Being at Paris in the spring of 1827, I received a letter 

 from Captain Kater, acquainting me that he had ascertained 

 the value of the divisions of the level of a small repeating 

 circle, which I had used to observe zenith distances for lati- 

 tude and time at some of my pendulum stations, to be 10*9 

 seconds each, instead of single seconds, which Mr. Dollond 

 the maker had mentioned as their value, when I received the 

 instrument from him. I lost no time in recalculating all the 

 observations made with the circle, and, returning to England 

 soon afterwards, gave a paper to the Royal Society, and in- 

 serted a letter in the Philosophical Magazine and Annals * ; 



* See Phil. Mag. & Annals, N. S. vol. ii. pp. 124, 143, & 176. Edit. 



in 



