32
Page 57
C
Summary
egeld ban -intaili
140 Although the chief6deposits of fullers earth in this country gre of limited extent, they contain réserves sufficient to meet requirements at current levels probably for at least fifty years:wond a lesnim od bas teibes doum
Jono Jeollasiestos not youtoon dili et conie notasdels to.
of sub ei vidhoo tubesnq edi ut voetbal sdi 30 diwong bigst sit ZN
brand lisw bus erstesia buisge, GYPSUM row aniblud. to golaugos, eit
belmoerot af latenia poi confportance
141. The mam gypsum deposits of economic importance in this country are found in the Midlands (principally Nottinghamshire), in the S.E. of England (largely in Sussex), and in Cumberland and Westmorland. The mineral is also found in Staffordshire and Derbyshire (where it is worked now in a small way), in Somerset and the Furness district of Lancashire, and in Durham and North Yorkshire. In most occurrences it is associated with some anhydrite (para. 45).
320
S12.122
A.
istes I 142. For many years mining was in the hands of a number of small private concerns such as Cafferata & Co. Ltd., founded in 1858, and Peter Ford & Sons Ltd., founded in 1878. In 1932 the firm of British Plaster Board Ltd, formed privately in 1917, was converted into a public company and established all but complete control. This Company now owns ten plaster board mills and some sixteen active mines and one active quarry with an aggregate mineral output last year of over 800,000 tons mainly from freehold deposits. Their output target has been set at 14 million tons a d discogs. alem od yo 20 of barletra), ¿svises1 lo stemites wIT M lasor oil to nollasibni tnon, & za toplar 90 yuan viimsbní grisim fueres odr Productionmoo-eld ni beraildane net o stanim bohown to villasup
year.
T
143 Before 1939 the mineral was produced at an annual rate of about half a million tons, Nottinghamshire being the main source of supply. In the War years output showed little change but since 1946 it has risen and now (1949) approaches the million ton mark by increases in Sussex, Notting- hamshire and Westmorland. Henceforward Sussex is likely to be a premier source of supply" as the Subwealden Mine at Robertsbridge, the largest single undertaking in the country, has recently been intensively mechanised and production has been increased. There is no Scottish production. “
qodal bouque) 61 VDWIND T800-21-go-holegre a wood astumm 24 szoquq mit wei epib w ropio tu,nold yoved iscipulood s
TABLE XII
him ab lo contimes enllugmob bo PRODUCTION OF GYPSUMhor sti mo?? .0 Prebrion mile(tons) of web orqodid llawon
28
1913
285,338
1923
317,676
1928
525,063
1929
412,477
x ordd a wol repsofia
1937 US 1938
face of
700,858
660,527
diode
1939 1940
av
625,012
569,272
1930
424,267
Horan di
1931
1932
425,438
1933
1934
606,002
1
1935
635,210 10 od le ale 1946
sent at a few
424,500 A to corrup od 1941
489.4931945 1944
doin:
$
619,290
1942
624,483
1943
606,275
506,869
540,401
oriumte
647,043
1936
683,677
1947
roud gee en aj svin geluon 819,151
The U.K. is at present the second largest gypsum producing country ́in the world, being surpassed only by the U.S.A
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