1 Dec., 1898. ] QUEENSLAND AGRICULTURAL JOURNAL. 467 
Descriprion oF Prarxs. 
Prare LXVITL.—(From Photographs by F. C. Wills.) 
A—tTransverse section of Prickly Queen Pineapple, showing Fruitlet Core-rot Disease. 
B—Transverse section of Smooth-leaf Pineapple, showing analogous disease. 
Prats LXIX.—(From Photograph by F. C. Wills.) 
Smooth-leaf Pineapple, exhibiting external symptoms of same (Plate LX. VIII., B). 
Norr.—This fails to adequately represent the distinctly-defined limits of the disease areas 
that obtain. 
Prare LX X.—(Irom Drawings by F. C. Wills.) 
A—1-4. Fruitlets of Prickly Queen Pineapple, in longitudinal section. 1. Healthy. 
2-4. Successive stages of disease. 
a, Upper or outer chamber; b, Depressions at base of style where disease (d) com- 
mences; C, Seed cayities or locules of ovary; e, Placental column of ditto ; 
d, Tissue involved by disease. ‘hree-fourths natural size. 
B—Fruitlets of Smooth-leaf Pineapple, in longitudinal section, showing two different 
stages of disease (d). Three-fourths natural size. 
C—Fungus (?) Monilia sp., associated with disease in Prickly Queen Pineapple. 
a, Mycelium, sporophore or spore-bearer; ¢, Spores; d, Septate spores; e, Sprouting 
spores. Magnification, 377 times linear. (After Drawing by Writer.) 
Prats LXXI.—(By F. C. Wills; after Drawings by Writer.) 
Fra. 1. Tarsonemus ananas, sp. nov., or Pineapple Tarsonemus Mite, female; lower surface. 
Magnification, 338 times linear. “ 
Tarsonemus Mite, mule; lower surface. Magnification, 338 times linear. 
tw 
» 38. Fungus-eating Mite (Dyroglyphide) ; upper surface. Magnification, 72 times linear. 
ay 2h at M Hy lower surface. Magnification, 72 times linear. 
» 5. Tyroglyphus ananas, sp. noy., male; lower surface. Magnification, 211 times linear. 
» 6. chilate mandibles, as seen when magnified. 
” ” ” 
Forestry. 
WATTLE CULTIVATION. 
A NEGLECTED QUEENSLAND INDUSTRY. 
TueRE are many portions of the mountainous parts of Queensland of which it 
is often remarked that the land is apparently fit for nothing—that it will not 
feed the proverbial goat; that the undergrowth of young gums and wattles 
will not even allow a dog’s bark to travel. From a purely agricultural point of 
view, such country is undoubtedly useless as farming land; but there are few 
“Jad lands” in the colony, provided they do not consist of sandy, swampy 
“wallum” country, on which something of value will not grow. Take the 
gravelly ridges so frequently met with on the coast. They are unsuitable for 
maize, which will produce on good lands from £6 to £8 per acre, but they are 
the ideal home of the Sisal hemp, and of the Mauritius hemp, which will 
produce £40 per acre. In like manner, the ridges and gullies of the Main 
Range are a favourite habitat of the wattle-tree, which will yield from £25 to 
£30 per acre. During the winter season, the eye of the traveller amongst the 
ranges is delighted with the beautiful, feathery, yellow bloom of countless 
wattle-trees of different varieties, 
