244 Transactions of the American Institute. 



dependence upon the Ohio Everbearing. On some soils, and in 

 the hands of good cultivators, it is unsatisfactory. I have always 

 found the Golden Cap a poor beai-er, and the fruit woody. The 

 Dorchester blackberry is not my favorite, nor is the Lawton, for it 

 is too a^vful sour, and if you let it hang till ripe, it drops. The 

 Wilson and Kittatinny are said to be better than either. The rest 

 of the list is happily chosen. Still, let nobody plant largely till he 

 is certain as to which will do best in his soil and climate. Li a 

 new place, one should experiment with leading sorts, before he can 

 be sure as to which it will be safe to depend upon. 



TREE PROTECTOR. 



Mr. D. McCaine, Groton, Mass., showed an arrangement for pro- 

 tecting fruit-trees from the ravages of the canker-worm. It is a 

 mechanical contrivance, composed of wood and glass, and so con- 

 structed as to present an obstacle to the ascent of the worm. No 

 tar nor coal oil nor other offensive material is required to stop the 

 worms from ascending into the tree-tops. The protector is com- 

 posed of a square octagonal frame of wood, made of strips one and 

 a half by two inches, to encircle the body of the tree. The pieces 

 are mitred at the corners. The frame is then suspended by a tent 

 of cloth, securely tied around the body of the tree, so that the 

 canker-worm cannot pass it unless it goes over the protector. On 

 the under side of the frame, when it is suspended around the tree, 

 there is a groove one inch deep, and about three-fourths of an inch 

 ■wide. The sides of this groove are lined with glass, thus forming 

 an angular groove of glass, on the under side of the protector, 

 entirely around the body of the tree. It is contended that the 

 canker-worm cannot ffet across this grroove in the under side of the 

 wood frame around the tree. 



Dr. Isaac P. Trimble. — This would be of no use in New York, 

 against the inch worm, the female of which has wings; but the 

 female of the canker-worm cannot fly, therefore it will be useful 

 where the canker-worm abounds. 



The Chairman. — As the cost is eight cents a foot, or a dollar for 

 a tree, the expense would be heavy. Mr. Quinn, how many pear 

 trees have you? 



Mr. P. T. Quinn. — From six to eight thousand. 



A NURSERY TREE-DIGGER. 



Mr. W. Gilbert, Catskill, N. Y., showed a small model of a tree- 

 digger for nurserymen. It is a kind of scoop plow, made of a 



