Natural History. — Botany. 39Y 
two eggs in its nest The one I dissected we found in the nest. 
The preparation I gave to Mr Scott, Secretary to the Honour- 
able Commissioners, so that you may probably hear of it through 
•another channel.” — Extract of a Letter from Dr Hill of Liver- 
pooly New Smith Wales p to Sir G, S. Mackenzie.’"'' 
BOTANy. 
49. Extraordmary Productiveness qf the Orange-trees of St 
. MichaeVs. — The oranges of St ^^ichael are celebrated for their 
fine flavour, and abundant sweet juice ; when left to ripen on the 
trees, they are inferior to none in the world. The lemons have 
less juice than those of some other countries, and the demand for 
them is inconsiderable. The orange and lemon trees blossom in 
the months of February and March. At this time, the glossy 
green of the old leaves, the light, fresh tints of those just shooting 
forth, the brilliant yellow of the ripe fruit, and the delicate white 
and purple of the flower, are finely contrasted with each other, 
presenting one of the most beautiful sights imaginable. The 
trees generally attain the height of fifteen or twenty feet. The 
usual produce of a good tree, in common years, is from 6000 to 
8000 oranges or lemons. Some instances of uncommon produc- 
tiveness have occurred ; a few years since, 26,000 oranges were 
obtained from one tree, and 29,000 have been gathered from 
another. These quantities have never been exceeded. — Dr 
Webster. 
50. Dr Jack'^s Descriptions qf Trees qf Sumatra and Ma- 
lacca. — Dr William Jack Jwmor, son of Principal Jack of Aber- 
deen, an active and intelligeqt naturalist, has lately transmitted 
to this country a series of interesting descriptions of Malayan 
plants, a copy of which was sent to us, and from which we shall 
now make a few extracts. 
51. Leucophogon Malay anum.' — Dr Jack describes a new 
species, under the title Leucophogon Malay anum, as occurring 
at Singapore. The discovery of this species, he observes, is re- 
piarkable, as forming an exception to the general geographical 
distribution of the Epacridese, a family almost exclusively con- 
fined to Australasia, or at least to the southern hemisphere. 
■* Eggs of the Ornithorhyncus were some time ago sent to the Linnean Society 
of London, and specimens of them arc preserved in their Museum.— E d. 
