314 Journal of Agricidture. [10 May, 1910. 



Mechanical Analysis. 



Con:ains Carbon Dioxide — 



mm. mm. 



Fine Gravel ... ... 2 — < 



Coarse Sand ... ... i — 5 



Medium Sand ... .. "5 — '25 



Fine Sand ... . . -25 — 'i 



Very Fine Sand .. 'i — "o; 



Silt ... ... ... '05 — -01 



Fine Silt ... ... 'oi — 005 



Clay .. ... ... Under 'co; 



Moisture 



1-oss on Ignition (Organic matter oidy) 



Stones 



The characteristic appearance of this type of soil, the surface of 

 which appears, in most cases, to be composed almost solely of waterworn 

 pebbles, is not easily forgotten — at Verchant these amounted to no les.s- 

 than 63.4 per cent, of the total soil (see analysis). 



The following is the analysis of a sample of soil taken from St. 

 Michel, near Lunel, one of the largest " submersion vineyards." 



An.\lvsis of Soil from St. Michei., 

 Cihcmical Analysis. 



Nitrogen 



Phosphoric acid 



Potash 



Lime 



Magnesia 



Chlorine 



Reaction 



Available in i per cent Ciiric Acid. — 



Phosphoric Acid ... ... ... ... 46 



Potash ... ■•• ... ... ... 96 



Alechanicrd A nalysis. 

 Stones 07 per cent. 

 Contains Carbon Dioxide 

 Very Coar.«e Sand 



mm. mm. 



Coarse Sand ... ... 1 — '5 



Medium Sand ... ... .5 — '^j 



F'ine Sand ... ... '25 — -i 



Very Fine Sand... ... 'i — "05 



Silt" ... ... ... 'Oi— 'OI 



Fine Silt ... ... -01— ^005 



Clay ... ... . undfr ^005 



Moisture 



Loss on Ignition 



99'94 



To qtiote Professor Lagatu, who has made numerous analyses of soils 

 of this type : — ■ 



They are all poor in phosphoric acid and lime. The non-iiebbly forms contain 

 sufficient proportions of potash and magnesia, whereas the forms composed of 



