28 



y. Enclosed ground for the growth of such vegetables as 

 will succeed in the latitude of St. Petersburgh, 60° N. 



h. Arboretum for trees and shrubs capable of enduring 

 our winter. 



h* A row of black Poplars (Populus nigra) reported to 

 have been planted by Peter the Great in person, and of the 

 same age as the garden itself. 



t. Nursery of young trees. 



m. Underground pipes, leading the water of the Neva 

 into 



n. A canal, supplying the necessary water, and dividing 

 the garden into two nearly equal parts. 



n * Small reservoirs of water. 



o. Flower-borders. 



p. Avenues of trees dating from the first establishment of 

 the gardens. 



The same Plan at b. exhibits the new houses, built in three 

 parallel ranges, facing S. S. E., and connected at the ends, so 

 that the whole may be passed in winter without exposure to 

 the open air. The North range measures 686 feet English, 

 the other two 672 feet each. These buildings are of brick, 

 with iron roofs; and to the North side of each a wide gallery 

 is attached, partly as protection against the cutting winds, 

 partly to serve as storehouses, &c. In some of these passages, 

 plants dormant during winter find shelter. The North range 

 contains chiefly less tender plants ; the middle tropical ; and 

 the southern consists of two warm and three cold houses. 

 Plants of the same natural families have been placed together 

 as tar as practicable, especially in the greenhouses ; but strict 

 adherence to this system is impossible, because the size, differ- 

 ence of temperature, and other circumstances require frequent 

 removals and cause disturbances of such arrangement. In 

 many cases the plants have been put in the borders to promote 

 their development and grow them as nearly as possible in 

 their natural form. 



The main entrance (a.) from the Garden Street leads into 

 the house No. 1, the North front of which is a portico or 

 peristyle ornamented with appropriate has reliefs. This en- 

 trance is only opened on great occasions.— (b.) Ordinary 

 entrance through the gardens ; the front is not finished. It is 

 a roomy hall, heated in winter, serving as place of meeting 

 tor gardeners and laborers to agree on their daily arrange- 

 ments, for the watch and other conveniences. A book is kept 

 here, m w hich visitors are requested to enter their names. 



