554 



On Chalk Marl 



Analysis of No. 11. 



Sand and silicious matter insoluble in acids 

 Carbonic acid 

 Sulphuric acid 

 Phosphoric acid 

 Chlorine 

 Lime . 

 Magnesia 

 Potash . 

 Soda . 



Oxide of iron and alumina 



Per Cent. 



1-46 

 41-48 

 none. 



•04 

 none. 

 55-72 

 •06 

 •17 

 •02 

 1-05 



100-00 



No. 12. Second Specimen of Upper Chalk, taken from a pit 

 where chalk is dug for manuring purposes, lying about half a 

 mile north of the preceding specimen. Both the soil and subsoil 

 of this locality possess the same external characteristics as those of 

 No. 11. 



Analysis of No. 12. 



Sand and silicious matter insolii 

 Carbonic acid 

 Sulphuric acid 

 Phosphoric acid 

 Chlorine 

 Lime 

 Magnesia 

 Potash . 

 Soda 



Alumina and oxide of iron 



ble in acids 



Per Cent. 



•87 

 42-57 

 •09 

 •08 

 •08 

 55^18 

 •30 

 •22 

 •21 

 •40 



100 '00 



Little need be added to what has already been said with regard 

 to these different soils. Nos. 1, 2, and 3, the different portions 

 of the gault, are not properly marls but clays ; the middle gault 

 being indeed the only one containing any carbonate of lime. 

 No. 4 is an exceedingly singular stratum ; and it is not impro- 

 bable that a further careful study of this soft light rock will aid in 

 throwing light upon the internal composition of soils, of which at 

 present we know little or nothing. The samples 5, 7, and 8 con- 

 tain a considerable proportion of clay, and are therefore properly 

 called marls ; whilst the last four specimens are all chalk, more or 

 less pure. 



XXIII. — On the Diseases occurring after Parturition in Cows 

 and Sheep, with the Remedies, Sfc. By W. C. Sib bald. 



Prize Report. 



In accordance with the first of the regulations laid down as guides 

 to competitors for the prize of the Society, the author has, in this 



