APPENDIX D 59 



Travels in Spain with. Captain Widdrington. 

 Feb. 24. Letter to Henslow, published in the Bury Post. 

 Nov. 6. On an Institution for the Cure of Cretinism. (Ashm. Soc.) 

 Journal of a Tour through the United States and Canada, 



made during the years 1837-8. pp. 239. 

 Tre lezioni sull' agricoltura. 



Second Report of Committee on Growth and Vitality of 

 Seeds. 



1844. On the provisions for the Subsistence of Living Beings evinced 



in the structure of the Older Rocks, and in the phenomena 

 which they exhibit. Royal Inst. May 31, 1844. 

 Lecture on Institutions for the better education of the Farm- 

 ing Classes; especially with reference to the proposed 

 Agricultural College near Cirencester. (Murray), 29 pp. 

 March 1 1. ) On Fluoric Acid from Recent and Fossil Bones (with 

 Nov. 1 8. } a Table of Analyses, p. 78). (Ashm. Soc.) 

 May 13. On the Natural History of Spain. (Ashm. Soc.) 



1845. June 25. Oratio ex Harveii Institutio. 4to and 8vo. 



On the occurrence of Fluorine in Recent as well as in Fossil 

 Bones. Quart. Journ. Chem. Soc. pp. 97-104. Read 

 March 18. 



Memoir on the rotation of crops, and on the quantity of 

 Inorganic Matter abstracted from the soil by various Plants 

 under different circumstances. (Bakerian Lecture.) Phil. 

 Trans, pp. 179-252. 



On the occurrence of Phosphorite in Estremadura. Written 



with Captain Widdrington. Read to Geol. Soc. Feb. 17, 



1844. Published in Journ. Royal Agric. Soc. v. ; and in 



Quart. Journ. GeoL Soc. i. pp. 52-5. 



Feb. 2. Guano deposited by Bats in Holton Church. (Ashm. 



Soc.) 

 May 5. Mummy wheat. (Ashm. Soc.) 



1846. On the use of Spanish Phosphorite as a Manure (written 



Dec. 8, 1845). Mem. Geol. Soc. 1844 ; Journ. Royal Agric. 

 Soc. vi. 



May ii. On the Site of the ancient City of the Aurunci, and on 

 the Volcanic Phenomena which it exhibits. Trans. Ashm. 

 Soc. 



On the Rationale of certain Manures employed in Agriculture, 

 read to the Chemical Section of the British Association, 



