 | Thaddeus William Harris, Massachusetts. Zoological and Botanical Survey - 1841 - 484 pages
...their operations is known by the oozing of the sap and the dropping of the saw-dust from the holes. The bark around the part attacked begins to swell,...repair the injuries they have suffered. According to the observations of General HAS Dearborn, who has given an excellent account* of this insect, the... | |
 | Cuthbert William Johnson - 1844 - 1210 pages
...their operations is known by the oozing of the sap and the dropping of the sawdust from the holes. The bark around the part attacked begins to swell,...will become disfigured and weakened by large porous tumours, caused by the efforts of the trees to repair the injuries they have suffered. According to... | |
 | Daniel Jay Browne - 1846 - 542 pages
...and in a few years the trunk and limbs will become disfigured and weakened by large, porous tumours, caused by the efforts of the trees to repair the injuries they have suffered." According to the observations of a writer in the " Massachusetts Agricultural Repository and Journal," vol. vi.,'... | |
 | Daniel Jay Browne - 1846 - 548 pages
...of their operations is known by the oozing of the sap and dropping of the saw-dust from the holes. The bark around the part attacked begins to swell, and in a few years the trunk and limbs will become disfigured and weakened by large, porous tumours, caused by the efforts... | |
 | 1846 - 392 pages
...of their operations is known by the oozing of the sap and dropping of the saw-dust from the holes. The bark around the part attacked begins to swell, and in a few years the trunk and limbs will become disfigured and weakened by large porous tumors, caused by the efforts of... | |
 | Thaddeus William Harris - 1852 - 536 pages
...their operations is known by the oozing of the sap and the dropping of the sawdust from the holes. The bark around the part attacked begins to swell,...repair the injuries they have suffered. According to the observations of General HAS Dearborn, who has given an excellent account* of this insect, the... | |
 | Thaddeus William Harris - 1862 - 700 pages
...their operations is known by the oozing of the sap and the dropping of the sawdust from the holes. The bark around the part attacked begins to swell,...repair the injuries they have suffered. According to the observations of General HA S. Dearborn, who has given an excellent account* of this insect,... | |
 | Cuthbert William Johnson - 1869 - 1296 pages
...their operations is known by the oozing of the sap and the dropping of the sawdust from the holes. The bark around the part attacked begins to swell,...will become disfigured and weakened by large porous tumours, caused by the efforts of the trees to repair the injuries they have suffered. According to... | |
 | 1878 - 798 pages
...their operations is known by the oozing of the sap and the dropping of the saw dust from the holes. The bark around the part attacked begins to swell,...the trees to repair the injuries they have suffered. . . . The grubs attain their full size by the 20th of July, soon become pupae, and are changed into... | |
 | 1879 - 530 pages
...their operations is known by the oozing of the sap and the dropping of the saw dust from the holes. The bark around the part attacked begins to swell,...the trees to repair the injuries they have suffered. . . . The grubs attain their full size by the 2oth of July, soon become pupae, and are changed into... | |
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... fibrous fragments of wood, to get rid of which the grubs are often obliged to open new holes through the bark. The seat of their operations is known by the oozing of the sap and the dropping of the saw-dust from the holes. The bark around the part... 
