EXPLANATORY INDEX. 415 



Greenheart bark are thrown away year by year. So goes the 

 world, and man meanwhile at once boasts of his civilization 

 and complains of the niggardliness of nature." 



This is just the complaint made by Waterton in more than 

 one passage of the Wanderings. He had some furniture 

 at "Walton Hall made of the Greenheart, and very excellent 

 furniture it was, and probably is still. 



Greenheart is one of the eight A 1 timbers at Lloyds'. It 

 is employed for kelsons, planking, and ' knees,' when these are 

 not made of wrought iron. It is time that legal protection 

 should be given to this tree, for the timber-merchants and 

 charcoal-burners have made great havoc with it. There are 

 three varieties, called respectively, the Yellow, Black, and 

 Mainop Greenheart. Logs are sometimes seventy feet long 

 and two feet square. 



Every part of the Greenheart is useful, bark, juice, and 

 timber being equally valuable in the service of man. 



GROSBEAK, SCARLET. Several birds are so called, the best 

 known being Cardinalis Virginianus, figured on page 468. 

 Waterton's bird, however, is evidently not a Grosbeak at all, 

 but one of the Tanagers, Pitylus erythromelas. The Tanagers 

 and the Finches are closely allied, and as the beak is very 

 arge at the base in the genus Pitylus, the name of Grosbeak 

 is not inappropriate. The bird is a small one, and the colour 

 is crimson rather than scarlet. 



GUANA or IGUANA (Iguana tuberculata) . This is a very odd- 

 looking, and not very handsome lizard, which inhabits the 

 West Indies, and is mostly found on the branches of trees 

 which overhang the water. It is rather large, an average sized 

 adult being about four feet long, while some attain a length 

 of six feet. The body however, is not very large, but the 

 tail is very long, and can be lashed from side to side so 

 sharply, that a stroke will cause much pain. 



In Mr. Brown's work on Guiana are some interesting 

 remarks on this lizard, of which, by the way, there are 

 several species : 



