EXPLANATION OF THE PLATES. 



It is necessary to state, in explanation of the irregularity in the numbering of the plates, that it 

 was expected that this work would embrace several, which I afterwards found it necessary to 

 arrange in another volume. Many of the plates were alread} r printed before this arrangement 

 was concluded. An error also was committed by the engraver in numbering the three plates 

 of the illustration of the diseases or brand of the cereals. The owners of the volume are re- 

 quested to make the proper correction with the pen. 



PLATES I, II, III, 

 Which illustrate the diseases of the cereals, are referred to in the text as PI. lv, lvi, lvii. 



PLATES 1 b, 2 b, 3 b, 4 b, 5 b, 6 b, 



Represent the most common varieties of potatoes which are cultivated in this vicinity. For 

 descriptions, see the text with its references. 



PLATE 4. 



Marrow Squash, Vegetable Marrow or (as called in other places) Boston Marrow Squash. It has 

 long been known and cultivated in the vicinity of Albany as the Vegetable Marrow, which 

 is probably the earliest name under which it has been known. 



PLATE 5. 



Brazil Squash. It is a kind which was but recently introduced. It is a valuable variety, and 



worthy of cultivation. Color green : short or depressed, with the ends pressed inwards. 



PLATE 6. 



Custard Squash, is new in this vicinity. It is a fine kind, and ranks with the Vegetable Marrow 

 in quality, though I am not ready to admit that it is superior. It is easily distinguished from 

 other kinds by its strong longitudinal ribs, extending its entire length, and by their alter- 

 nating with short and imperfect ones. 



PLATE 7. 



Egg-plant. Fruit thick and somewhat pyriform, purple : stem armed with spines. 



PLATE 8. 

 Structure of wood as magnified about five diameters. 



Fig. 1. Chestnut, with its bark, showing in the wood the annual layers which are distinguished 

 by large pores arranged in three lines, and by faint whitish perpendicular bands which show 

 the arrangement of the secondary pores. The bark, in this as in all trees, undergoes re- 

 markable changes in the arrangement of the annual layers, becoming in many instances 

 oblique and obscure. The wood is clearly different in structure from the oak (fig. 5). 

 [Agriculturl Eep. Vol. ii — App.] 7 



