On the origin of species by means of natural selection; or The preservation of favored races in the struggle for life.

"First edition 1859; 6th ed. 1872."

Experiment station research on the vitamin content and the preservation of foods /

"March, 1944."

A book for all readers,: designed as an aid to the collection, use, and preservation of books, and the formation of public and private libraries,

Mode of access: Internet.

Classified provisions of collective bargaining agreements in the iron and steel industry.

"Prepared under the direction of the Sub-committee on labor relations of the Industrial relations committee." - Pref.

Safety standards; codes and regulations for the prevention of accidents and the preservation of health in all places of employment,

At head of title: Industrial Commission of Minnesota. Published in 1943 under title: Industrial safety standards, laws and codes for the prevention of accidents and the preservation of health.

Preservation of competitive through rail routes. Hearing, Eighty-fifth Congress, second session, on S. 2129 and H. R. 5384, to amend the Interstate Commerce act to provide for the preservation of competitive through routes for rail carriers.

[pt.1] March 3, 1958. 98 p.--pt.2. August 5, 1958. pp. 99-147.

Equal employment opportunity : a survey of provisions in labor agreements in the federal service, November 22, 1974 /

"No. 14-74."

Health and safety : a survey of provisions in labor agreements in the federal service, October, 1975 /

"USCSC/OLMR-75/06."

Leges marchiarum, or, border-laws : containing several original articles and treaties, made and agreed upon by the commissioners of the respective kings of England and Scotland : for the better preservation of peace and commerce upon the marches of both kingdoms : from the reign of Henry III. to the union of the two crowns in K. James I : with a preface, and an appendix of charters and records, relating to the said treaties /

Signatures : A¹², a⁶, B-M¹².

The preservation of antiquities; a handbook for curators,

"Literature": p. [xiii]-xiv.

Trade agreements extension act of 1951. Hearings before the Committee on Finance, United States Senate, Eighty-second Congress, first session, on H. R. 1612, an act to extend the authority of the President to enter into trade agreements under section 350 of the Tariff act of 1930, as amended, and for other purposes.

Hearings held Feb. 22-Apr. 6, 1951.

Trade agreements extension : hearings before the Committee on Finance, United States Senate, Eighty-fourth Congress, first session, on H.R. 1, an act to extend the authority of the President to enter into trade agreements under section 350 of the Tariff Act of 1930, as amended, and for other purposes.

"Index by general categories, pts. 1-4" issued seperately.

Migratory waterfowl shortage. Hearings before the Special committee on conservation of wild life resources, United States Senate, on the protection and preservation of migratory waterfowl in the United States. April 4, 5, and 6, 1932. Printed for the use of the Special committee on conservation of wild life resources.

Mode of access: Internet.

A system of uniform and common international regulations for the protections and preservation of the food fishes in international boundary waters of the United States and Canada /

Caption title.

Simultaneous fixation using glutaraldehyde and osmium tetroxide or potassium ferricyanide-reduced osmium for the preservation of monogenean flatworms: An assessment for Merizocotyle icopae

Simultaneous fixation was investigated for a marine organism: the monogenean flatworm ectoparasite Merizocotyle icopae. Four protocols for primary fixation were compared: 3% glutaraldehyde alone in OAM cacodylate buffer for a minimum of 2 hours; 1% glutaraldehyde in combination with 1% osmium tetroxide, both in 0.1M cacodylate buffer, until tissues darkened (5-20 minutes); 1% glutaraldehyde in OAM cacodylate buffer in combination with 0.5% potassium ferricyanide-reduced osmium until tissues darkened (5-20 minutes); 1% glutaraldehyde in combination with 1% osmium tetroxide, both in 0.1M cacodylate buffer, for 30 minutes. The study confirms that the standard method for transmission electron microscopic fixation (first listed protocol) routinely applied to platyhelminths is optimal for ultrastructural preservation, but some simultaneous fixation methods (second and third listed protocols) are acceptable when rapid immobilization is needed. Scanning electron microscopic preparations may be improved using simultaneous primary fixation. (C) 2004 Wilcy-Liss, Inc.