16 THE CUBA REVTEW 
Nitrate of Soda in Lighters in Havana Harbor 
small portions of these areas have been utilized, advantage being taken of the benefits 
to be derived from fertilization; and the gradual improvement through cultivation and 
fertilization have transformed considerable bodies of these one time useless lands into 
soils of moderate fertility which respond bounteously to proper agricultural treatment. 
Especially has this been the case in the tobacco lands of central and western Pinar del 
Rio Province, where the small farms on which the tobacco has been grown have gradually 
extended in area through the gradual improvement of the lands immediately surrounding 
the small wooded areas where tobacco was originally planted and where the finest quality 
of leaf is still produced. It is also true that considerable areas of the light, red, porous 
“savannah”’ of Matanzas Province have been rendered valuable through the use thereon 
of high grade fertilizers in abundance, so that during the last two or three years of high 
