Excerpt from White-Pine Blister Rust in the Western United States Do not plant black currants. To do so is to help the blister rust to become rapidly and firmly established in the West and thus to destroy the valuable western white -pine forests. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from White-Pine Blister Rust in Western Europe This magnificent specimen in the Domains of St. Ode, Luxembourg, IS one of our finest Amer 1can trees on foreign sou. Photographed by Prof. Charles Bommer, Brussels, Belgium. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Investigations of the White-Pine Blister Rust To sum up 'briefly: Pinus cembra, the probable original pine host, ranges across northern Asia; and the fungus is reported from western) eastern, and central Asia, in some places where it may easily be endemic. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from On the Nature and Control of the White Pine Blister Rust On the other hand I not only put up the. Theory that these pycnidial drops serve a purpose, but also showed that they have nothing to do directly with the life circuit of the rust fungus, since they occur both early in the spring or they may occur apparently at almost any season in late sum mer and fall (f. B. 742, p. I showed that as the fungus disease is in' summer admittedly absent from pines, the or igin of pycnidial drops with immense numbers of tiny sporebodies (p. 11) occurring during summer and fall on pine cannot be ascribed to the rust fungus, I having originally specifically pointed out that there are then no teliospores present to produce them, since these only occur in the fall. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from White Pine Blister Rust It is further ordered that the prohibitions of this order shall be non-effective as to the plants mentioned originating in or coming from the State of New Jersey. These prohibitions shall not apply to such plants in transit through the state; or to any of these plants which were introduced into the state before the approval of this quarantine; or to transactions which do not involve the actual introduction of such plants into the state; or to such other exceptions as may be authorized by the Secretary of Agriculture. Any plant materials described above received in this state in violation of this quarantine are hereby declared a public nuisance and as such are subject to destruction. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.