Mr Sadler's Report on Opcn-Air Vajctation. 2-i5 



the thermometer fell to 28" (or 4° of frost). The gardener at 

 Brodick Castle has also kept a register of the temperature at the low 

 Castle Gardens, using an accurate self-registering thermometer, and 

 he informs me that the lowest temperature was in January, when 

 it fell to 13^ The temperature at Captain Brown's, Lamlash, and 

 at Cromla, Corrie, being so similar in situation to the low Castle 

 Gardens, cannot differ much from it, though I am inclined to thiuk 

 it will at both be tAvo or three degrees higher, as the air flowing 

 from the great Eosa Glen, which issues at Brodick, running from 

 the north-west, and coming from the centre of the island, may to 

 some extent cool the temperature, though the garden is thoroughly 

 sheltered from its direct effect, and is otherwise admirably situated 

 at the base of Goatfell, and sheltered by its wood. I may add that 

 the Tree-ferns at Cromla grow in corners well sheltered. "When no 

 locality is given Cromla garden is meant. 



Gum Trees. 



Blue Gum {Eucalyptus globulus) — 



Corrie Hotel. — Leaves dead, tree uninjured, — now beginning to 

 grow, 



Cromla, Corrie. — Grows in a colder and heavier soil than at the 

 HoteL All the wood of last summer killed, now beginning to grow. 



At Brodicl: — Two, both killed. One at Captain Brown's, Lam- 

 lash, leaves killed, tree uninjured. 



Almond-leaved Gum (E. amygdalina) — 



At Cromla, Corrie — Two — one killed ; the other has lost most of 

 its leaves, but tree uninjured. Last year it began to grow early 

 in February, This year it is only beginning now. 



Brodick Castle Wood. — Two trees — one has lost the wooil of last 

 year; the other its leaves, but otherAvise uninjured. 



Two varieties of this tree grew from the same seed. Both at 

 Corrie and Brodick, the one variety has proved more hardy than 

 the other. 



The Giant Gum (Eucali/ptus gigantea). — This is one of the finest 

 of the " Gums," the leaves are very large, lightish in colour, and of 

 great substance. The tree is of rapid growth, and hardier than 

 any other Gum with which I am acquainted. The seed was 

 gathered on the Blue ^lountains, Xew South "Wales, and sown in 

 a stove in 1879. Last year it was planted at Cromla, Corrie, 

 and at Captain Brown's, Lamlash. The tree at Lamlash has not lost 

 a leaf, nor is one discoloured. It began early to grow, and has 

 already made shoots 13 inches in length, while a Blue Gum 

 beside it is only now beginning to grow. The tree at Corrie is also 

 uninjured by frost ; but has been eaten by some animal. 



