Author: Marcus BullPublisher:
ISBN:
Category :
Languages : en
Pages : 82
Book Description
Experiments to Determine the Comparative Quantities of Heat Evolved in the Combustion of the Principal Varieties of Wood and Coal Used in the United States, for Fuel; and Also to Determine the Comparative Quantities of Heat Lost by the Ordinary Apparatus Made Use of for Their Combustion
Author: Marcus BullExperiments to Determine the Comparative Quantities of Heat Evolved in the Combustion of the Principal Varities of Wood and Coal Used in the United States for Fuel
Author: Marcus BullUSDA Forest Service Research Paper NE.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 240
Book Description
Some Effects of Paraformaldehyde on Wood Surrounding Tapholes in Sugar Maple Trees
Author: Alex L. ShigoPublisher:
ISBN:
Category : Microorganisms
Languages : en
Pages : 416
Book Description
S2Pills of paraformaldehyde (trioxymethylene) are commonly used in tapholes in sugar maple trees (Acer saccharum Marsh.) to increase the yield of sap collected for making syrup and sugar (2, 4, 5, 8). The explanation offered for this increase in sap yield is that microorganisms in the tapholes (7) cause premature decline and stoppage of the sap flow (1, 6), but that paraformaldehyde increases sap yield by inhibiting their growth (2). But what happens to the tree? To determine the effects of paraformaldehyde on the tissues surrounding tapholes, and on the microorganisms in those tissues, sugar maple trees were dissected and studied. This paper is a report on that study.S3.
A Selected and Annotated Bibliography of Pitch Pine (Pinus Rigida Mill.)
Author: Silas LittlePublisher:
ISBN:
Category : Pitch pine
Languages : en
Pages : 112
Book Description
S2The authors have attempted to include in this bibliography all articles that contain significant original information about pitch pine or that are comprehensive review; Secondary sources, such as textbooks that briefly review the literature on specific subjects, are omitted. Articles on local floras are included only if they provide new, revised, or more detailed information about the distribution or abundance of pitch pine.S3.
Journal of the Franklin Institute of the State of Pennsylvania for the Promotion of the Mechanic Arts
Author: Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 798
Book Description
Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415]
The Franklin journal and American mechanics' magazine
Author: Journal of the Franklin Institute
Author: Journal of the Franklin Institute
Author: Franklin Institute (Philadelphia, Pa.)Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 440
Book Description
Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59.
The Technical repository, by T. Gill
Author: Thomas Gill (patent-agent)Publisher:
ISBN:
Category :
Languages : en
Pages : 426
Book Description