566 ORGANOLOGY. 



No. 7. The bones having been boiled in order to remove the fat, contained 

 about 2 per cent, of impure gelatine, with 16'98 per cent, of nitrogen. (The 

 specific gravity I have put at 1*021. The water of course likewise contained all 

 the insoluble salts of the bones, the vessels, skin, and sinews attached to it.) 



No. 8. The Flemish manure, in this instance, consisted almost exclusively of 

 the urine and excrement of human beings (etat normal ?) : the specific gravity I 

 assume at 1'05 ; the nitrogenous contents, according to Boussingaiilt, at 0'19 

 per cent. 



The most rapid and remarkable effects were exhibited by No. 6, 7, and 8. 



B. 



LIST OF OLD TREES, ACCORDING TO MOQUIN-TANDON. 

 ( Teratologie Vegetale.) 



THERE are known 



Palms of ...... 200, 300 years. 



Cercis . . . . . . 300 



Chirodendron ...... 327 



Ulmus (Elm) ..... . 355 



Cupressus (Cypress) ..... 388 



Hedera (Ivy) ...... 448 



Acer (Maple) . . . . . . 516 



Lark (Larch) ...... 263, 576 



Castanea (Chestnut) ..... 360, 626 



Citrus (Oranges, Lemons, &c.) . . . 400, 509, 640 



Platanus (Plane) . . . ... 720 



Cedrus (Cedar) ... . 200, 800 



Juglans (Walnut) . . . ... 900 



Tilia (Lime) .... 364, 530, 800, 825, 1076 



Abies (Spruce) ...... 1200 



Quercus (Oak) . . 600, 800, 860, 1000, 1600 



Olea (Olive) 700, 1000, 2000 



Taxus (Yew) .... 1314, 1466, 2588, 2880 



bchubertia . . . ... 3000, 4000 



Legummosas ..... 2052,4104 



Adansoma (Baobab) . 6000 



Dracaena (Dragon Tree) ... 6000 



