Myrtle e johnson (7 risultati)

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condizione: New. Print on Demand. This book presents the results of meticulously observing the pigment formation of amphibian larvae under diverse laboratory conditions. The author examines prevailing theories on color differentiation and pigment production, highlighting gaps in current understanding. The experiments described in the study challenge the long-held notion that nutrition directly influences pigment formation, as they reveal the significant role of the qualitative composition of food in determining larval coloration. By investigating the effects of light, heat, and food type, the author demonstrates that certain food substances act as color modifiers, influencing both the amount and shade of pigment. Ultimately, this book provides compelling evidence that pigment formation in amphibian larvae is a complex process subject to various internal and external factors, underscoring the intricate interplay between genetics, environment, and nutritional components in determining the coloration of living organisms. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Hardcover. Condizione: Good. No Jacket. 1st Edition. Ex-library copy marked only by stencils to title page and tissue guard, and small stamps to two other pages. Book has been re-bound with original boards and new spine. Pages are yellowed but free of highlighting, underlining, marginalia, etc. Boards rubbed at etremities. …

Condizione: Near Fine. First edition. First edition. 12 color plates, numerous illustrations. 659pp. 8vo. Publisher's cloth with pictorial gilt embossed stamp on upper cover. Near fine 12 color plates, numerous illustrations. 659pp. 8vo.