12 THE CANADIAN NATURALIST. [Feb. 



1. The hollow bamboo of the plains. 



2. Solid bamboo of the lower hills, of which spear handles and 

 (Clubs are usually made. 



3. The Nirgali, or small bamboo of the hills, growing at ele- 

 vations from 5,000 to 8,000 feet. 



4. The Garroo, or still smaller hill bamboo, growing at higher 

 -elevations, probably up to 12,000 feet. 



Enquiries have been set on foot to ascertain, if possible, from 

 ihe people, the intervals which elapse between the seasons of flower- 

 ing of the several varieties, a point on which the more observant 

 ought to be able readily to furnish information ; as after flowering 

 and yielding seed, the entire tract of bamboo which has seeded 

 simidtaneously dries up and perishes, fresh plantations springing 

 up from the seeds which have been scattered by the old stock. 



24. Box WOOD AND Olive wood for the Engraver. — The 

 following remarks by Dr. Cleghorn, the cbief botanist in India, 

 accompanied samples of wood-engraving received from Dr. 

 Hunter of the Madras School of Arts : — 



" Some months ao'o I sent small losfs of box and olive from 

 Kooloo, and, as you perceive, both of these woods answer well for 

 engraving. They show that the wood cuts smoothly, and has 

 working qualities adapted for the graver to print from. 



" The enclosed twig of box (Biixus sempervirens) is taken from 

 a tree in Mr. McLeod's arhoreium at Dharmsalla, a spot well wor- 

 thy of a visit, containing many introduced Himalayan trees of 

 .^reat interest, as well as many European fruit-trees adapted to 

 this hill station. It is perhaps the only collection of indigenous 

 Alpine trees in the Punjab ; the nearest approach to it being that 

 of Mr. Berkeley at Kotghur. I hope the day is not far distant 

 when the Punjab Agri-Horticultural Society may have a Hill 

 garden affiliated with it, at one of the Sanitaria of the province* 



" The Himalayan box appears to be identical with the tree com- 

 mon all over southern Europe, from Gibraltar to Constantinople, 

 :and extending into Persia. It is found chiefly in valleys at an eleva- 

 tion of from 3,000 to 6,000 feet. I have met with it from Mount 

 Tira near Jhelum, to Wangtu Bridge on the Sutlej. It is variable 

 in size, being generally seven to eight feet high, and the stem only 

 .a few inches thick, but attaining sometimes a height of fifteen to 

 seventeen feet, as at Mannikarn in Kullu, and a girth of twenty-two 

 inches as a maximum. The wood of the smaller trees is often the 



