5^ The 3\(atural Hijlory 
Rain may the better feparate its parts, and fit it to incorporate 
with that hungry Soil. 
1 o. Which condition I fuppofe may not at all be required, in 
the manure of a light and hollow fort of MarL^ lately found by 
the worfliipful and induftrious Improver, George Pudfey Efq; of 
Elsfield : for in water it diffolves almoft as foon as Fullers earthy 
and is naturally of it felf fo hollow and fpungy, that one would 
think it were always in the very ferment, and may therefore be 
ufed at any fit time of year : of colour when dry, it is of a 
whitifli gray, intermixed with fand, and very friable, and may 
in all probability be the very fame, with the Marga Candida are- 
nofa friabili^^ of HildeJIje'm^ mentioned hy Ken tTnannu6 \ and out 
of him by Lachmund, Of juft fuch another Marl as this, brittle 
and dufty when dry, but fat when wet, we are inform'd there is 
at Wexford in the Kingdom of Ireland^ by D"" GerrardBoat ^ fom- 
time Phyfitian there ; only thatr^a* is blue, and ibi^ a whitifh 
gray, and may therefore be fitter for Pafture than Arable. It 
being obferved in the Counties of Sujfexznd Kent^ where Marls 
are moft plenty of any places of England^ that the^rj; fuit with 
Failures, and the blue (fuch perhaps as Sir Thomas Tennyflons) with 
Arable beft. 
11. It may therefore be expedient, that thefe new found 
Mzr/^ bethus agreeably tryed, and though they anfwer notexpe^ 
station the firft year, as fome fay they will not let not their 
Owners be thus difcouraged, but ftill continue to make frequent 
tryals, of divers proportions of Earth, at all feafons of the 
year, with all kinds of Grain upon all forts of Soil, till they 
find out the moft fuitable and neceffary circumftances, fo fliall 
they in time attain to a knowledge beyond the expectation, and 
perchance imitation of their Neighbors. But I forbear to m- 
ftruft fuch Ingenious Perfons^ as the Owners of the above- 
named Marl-pits are : the ^rdf/or being accounted little lefs than 
a fool, that went about in his Speech to teach Hannibal to 
fight. 
1 2. But befide thefe, wc have another fort of Earth, of a fat 
clofe texture,andgreeni{Ii colour, fo well impregnated with fome 
kind of falty that put in the fire, it prefently decrepitates with no 
» Kentman.nomenclat. rer.fofcapT,, de Margis, « Boats Nat. Hill- of hehad, cap. iz. » TliM.Nat' 
lefd 
