The art of landscape painting in oil colour,

Mode of access: Internet.

Representative one-act plays by continental authors,

Bibliographies: p. [451]-463.

Oil field engineering.

Mode of access: Internet.

The international oil industry.

Mode of access: Internet.

Crofutt's trans-continental tourist, containing a full and authentic description of over five hundred cities ...

Mode of access: Internet.

Report on the multiphase flow of gas, oil, and water through vertical flow strings with application to the design of gas lift installations,

Cover title.

The outlook for oil shares.

Mode of access: Internet.

Life and times of Stephen Higginson, member of the Continental congress (1783) and author of the "Laco" letters, relating to John Hancock (1789)

Mode of access: Internet.

Lubricating engineer's handbook; a reference book of data, tables and general information for the use of lubricating engineers, oil salesmen, operating engineers, mill and power plant superintendents and machinery designers, etc.,

Mode of access: Internet.

Oil electric locomotives and rail cars.

Mode of access: Internet.

Motor vehicles and motors, their design, construction and working by steam, oil and electricity;

V.2 is 1st ed.

Life and times of Stephen Higginson, member of the Continental congress (1783)

Mode of access: Internet.

Chukchi Sea oil & gas lease sale 126 : draft environmental impact statement.

"OCS EIS/EA MMS 90-0035."

Proposed environmental impact statement : proposed 1979 OCS oil and gas lease sale.

Cover title: Proposed 1979 Outer Continental Shelf oil and gas lease sale 58, western and central Gulf of Mexico.

Microspectrophotometry of visual pigments and oil droplets in a marine bird, the wedge-tailed shearwater Puffinus pacificus: Topographic variations in photoreceptor spectral characteristics

Microspectrophotometric examination of the retina of a procellariiform marine bird, the wedge-tailed shearwater Puffinus pacificus, revealed the presence of five different types of vitamin A(1)-based visual pigment in seven different types of photoreceptor. A single class of rod contained a medium-wavelength sensitive visual pigment with a wavelength of maximum absorbance (lambda(max)) at 502 nm. Four different types of single cone contained visual pigments maximally sensitive in either the violet (VS, lambda(max) 406 nm), short (SWS, lambda(max) 450 nm), medium (MWS, lambda(max) 503 nm) or long (LWS, lambda(max) 566 nm) spectral ranges. In the peripheral retina, the SWS, MWS and LWS single cones contained pigmented oil droplets in their inner segments with cut-off wavelengths (lambda(cut)) at 445 (C-type), 506 (Y-type) and 562 nm (R-type), respectively. The VS visual pigment was paired with a transparent (T-type) oil droplet that displayed no significant absorption above at least 370 run. Both the principal and accessory members of the double cone pair contained the same 566 nm lambda(max) visual pigment as the LWS single cones but only the principal member contained an oil droplet, which had a lambda(cut) at 413 nm. The retina had a horizontal band or 'visual streak' of increased photoreceptor density running across the retina approximately 1.5 mm dorsal to the top of the pecten. Cones in the centre of the horizontal streak were smaller and had oil droplets that were either transparent/colourless or much less pigmented than at the periphery. It is proposed that the reduction in cone oil droplet pigmentation in retinal areas associated with high visual acuity is an adaptation to compensate for the reduced photon capture ability of the narrower photoreceptors found there. Measurements of the spectral transmittance of the ocular media reveal that wavelengths down to at least 300 nm would be transmitted to the retina.