3(M 



CASE Cork box called a "Tarro," used in the province of 



122. Alentejo, Portugal, by agricultural labourers for carrying 

 their food in and to keep it cool. Observe also a Cork 

 hat, as used in Portugal. 



Note in the next compartment a sample of Kermes, 

 the small insects which attach themselves to the leaves 

 and branches of Quercus coccifera^ L., a native of the 

 Mediterranean region. They furnish a crimson dye and 

 are much used in the South of France, Spain, Morocco, 

 and Turkey, chiefly for dyeing woollens and leather. 

 CASE Specimens of wood and acorns of Holm or Evergreen 



123. Oak {Quercus Ilex^ L.) are shown on the upper shelves 

 of the first compartment. Note also acorns of Q. Ilex, L., 

 var. Ballota, sold in the markets of Spain and Morocco, 

 and used as food. 



Observe also in this Case a collection of woods and 

 acorns of Oaks from India, Malay Archipelago, Japan, 

 China, &c. The following are amongst those exhibited : — 

 Quercus lamellosa, Sm., Q. glauca, Thb., Q. fenestrata, 

 Roxb., and Q. spicata, Sm., all East Indian species, 

 Q. serraia, Thb., from Japan, and Q. cornea, Lour., from 

 China, the last of which is edible. 



No. 496. Gall-nuts, or Mecca Galls, from the 

 puncture of a Cynips, on Q. Lusitanica, var. infectoria, 

 A.DC, a shrubby oak of Asia Minor. Galls produced on 

 other species are also met with in commerce. 



No. 497. Tannin, extracted from Gall-nuts. The 

 gelatinous tissue of a piece of raw hide immersed in a 

 solution of tannin gradually combines with it, and retains 

 it in the form of Leather. The colouring matter of 

 ordinary ink is obtained by digesting Gall-nuts with a 

 salt of iron. 



No. 498. Gallic Acid, obtained from Gall-nuts. 



No. 499. Valonia, the Acorn-cups of Q. Aegilops, L. 

 That imported from Greece is furnished by the variety 

 macrolepiSy and that from Asia Minor by the variety 

 XJngeri. It is largely used by tanners and dyers. 

 25,652 tons of Valonia of the value of £262,819 were 

 imported in 1905. 



