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estimated, that under ordinary circumstances an acre should 

 support from 700 to 1000 Mulberry-trees, producing 

 5000 Ibs. of leaves fit for food, when four years old. On 

 this quantity of leaves can be reared 140,000 worms, from 

 which ova at a nett profit ranging from 80 to 240 per 

 acre will be obtained by the work of one person. Mr. C. 

 Brady, of Sydney, thinks the likely proceeds of silk-culture 

 to be from 60 to 150 for the acre. The discrepancies 

 in calculations of this kind are explained by differ ences in 

 clime, soil, attention and treatment. 



The "White Mulberry-tree has been very copiously distributed 

 from the Melbourne Botanic Garden since many years. A 

 very palatable fruit is obtained from a variety cultivated in 

 Beloochistan and Afighanistan. Morus Tatarica, L., 

 resembles M. alba. Its juicy fruit is insipid and small. 

 The leaves are not generally used for Silkworms. 



The results of Mr. Brady's experience on the varieties of the 

 Morus alba are as follows : In the normal form the fruits 

 are white with a purplish tinge more or less deep, the bark 

 is pale, the leaf is also of a pale hue, not very early nor 

 very tender, nor very abundant. It may be grown on moist 

 ground as long as such is drained, or it will live even on 

 poor loose gravelly soil bordering on running water. The 

 Cevennes variety is a free grower, affords a large quantity of 

 leaves though of rather thick consistence ; all varieties of 

 the Morus Bombyx like these leaves at all stages of their 

 age. It is also called the rose-leaved variety. The silk 

 which it yields is substantial in quantity and also good in 

 quality. It does best on rich dry slopes. The bushy 

 Indian variety has a fine leaf of beautiful green, which 

 though light in weight is abundantly produced. It can be 

 cut back to the stem three or four times a year ; the leaves 

 are flat, long and pointed, possess a. fine aroma, and are 

 relished by every variety of the ordinary Silk-insect, though 

 not all thrive equally well on it. The silk derived from this 

 variety is excellent, but not always so heavy in quantity as 

 that produced from the rosy variety. It prefers rich low- 

 lying bottoms, is a greedy feeder, but may thus be made to 



