Birds'-nesting; a handbook of instruction in gathering & preserving the nests & eggs of birds for purposes of study.

Mode of access: Internet.

British birds' eggs and nests popularly described.

Mode of access: Internet.

Eggs: facts and fancies about them,

Mode of access: Internet.

Losses in boiling vegetables and the composition and digestibility of potatoes and eggs.

Mode of access: Internet.

The demand, supply, and price structure for eggs /

Cover title.

Reducing damage to eggs and egg cases /

"Issued May 1945."

A revised catalogue of the birds of Kansas. With descriptive notes of the nests and eggs of the birds known to breed in the state.

Mode of access: Internet.

Gathering Eggs

Saline Valley Farms was an experiment in cooperative farming and living begun in 1932 by Harold S. Gray.

Cracked heads; a burlesque,

Mode of access: Internet.

Marketing eggs from

Mode of access: Internet.

Packing eggs for mar

Mode of access: Internet.

Marketing of eggs

Mode of access: Internet.

Graded eggs bring be

Mode of access: Internet.

Ootheca Wolleyana : an illustrated catalogue of the collection of birds' eggs /

"The collection of which this is the catalogue has been given to the University of Cambridge ... Museum of Zoology."--vol. II, p. vi.

The effect of parasitization by Trichogramma australicum on Helicoverpa armigera host eggs and embryos

Histological investigations of the pathology of Helicoverpa armigera (Hiibner) eggs after attack by the egg parasitoid, Trichogramma australicum (Girault), indicate that the developing embryo is immediately killed by envenomation. Soon afterward the histological staining characteristics of parasitized host embryos change and the embryonic germ band dissociates into a mass of individual rounded cells. Hosts attacked by females sterilized by gamma-irradiation showed the same pathological effects as normally parasitized hosts, indicating that host degeneration is due to female venom rather than factors derived from the parasitoid embryo or larva. Cell death also occurred in older host embryos although tissue breakdown was delayed. These findings have allowed us to determine not just that the host dies but what happens to the cells and tissues, i.e., their physical appearance, the time course of their degeneration, and that the process is retarded in older hosts. These processes can possibly be emulated in artificial diets. (C) 2003 Elsevier Inc. All rights reserved.