J L Eakin (9 results)

Soft cover. Condition: Very Good. ORIGINAL 1965 PUBLICATION; Softcovers; staple-bound; in very good condition. Book.

Soft cover. Condition: Very Good. ORIGINAL 1955 PUBLICATION; softcover, staple-bound; ex-corporate library; light browning of covers; light glue stain on last (blank) page due to facing library card; o/w contents in very good condition. Book.

Soft cover. Condition: Good. ORIGINAL 1953 PUBLICATION; softcovers, bound into flexible cardboard; ex-library; light foxing of edges; o/w in good condition. Book.

Soft cover. Condition: Good. ORIGINAL 1953 PUBLICATION; softcovers, staple-bound; ex-corporate library; small stains on front paper cover; light foxing of edges; o/w in good condition. Book.

Pamphlet. Condition: Very good. 1st Edition. Pages 211 - 266. Department of the Interior, United States Geological Survey, Bulletin 642 - H. Very good, wrappers. (149).

This paper is cast in the form of answers to pertinent (sometimes impertinent) questions which a reader might ask of persons devoting the better part of a scientific career to studying the eye of a snail. Two structures in the eye of Helix aspersa are emphasized: the microvilli and microvesicles of type I photosensory cells. Evidence is presented to support the conclusions that the microvilli are the light-sensitive organelles and that the microvesicles, termed photic vesicles, bring to the microvilli substances needed in photoreception, such as photopigment and perhaps calcium. The evidence consists of: uptake of radioactive vitamin A by the villi and vesicles, formation of a black precipitate by both structures upon prolonged staining with osmium tetroxide, the effects of light and dark upon the microvilli and photic vesicles, a comparison between the photic vesicles of a light-tolerant slug and those of a nocturnal slug, and a preliminary finding of a high concentration of calcium in the somatic layer of the retina. The movement of the photic vesicles from the Golgi centers, where they are formed, to the microvilli is attributed to rhythmic, light-dependent pulsations of the eye caused by contractions of smooth muscle cells embedded in the optic capsule. 13 pp., 16 pp., gr. 8.…

Leatherbound. Condition: NEW. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. A perfect gift for your loved ones. Reprinted from 1965 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set and contains approximately 32 pages. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Language: English.…

Leatherbound. Condition: NEW. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 92. A perfect gift for your loved ones. Reprinted from 1964 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Language: English Pages: 92.…

LeatherBound. Condition: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 428. A perfect gift for your loved ones. Reprinted from 1955 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Volume no.5131-5140 1955 Language: English Pages: 428 Volume no.5131-5140 1955.…