By Pant, D.D. and Osborne, R. and Birbal Sahni Institute of Palaeobotany
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Content material: - Contents, Pages v-viiiChapter 1 - Parameters, Pages 1-8Chapter 2 - Pump Calculations, Pages 9-18Chapter three - Required info for Specifying Pumps, Pages 19-20Chapter four - Pump forms, Pages 21-41Chapter five - requisites, Pages 42-44Chapter 6 - Pump Curves, Pages 45-54Chapter 7 - results of Viscosity on Pump functionality, Pages 55-60Chapter eight - Vibration, Pages 61-82Chapter nine - internet confident Suction Head (NPSH), Pages 66-73Chapter 10 - Pump Shaft Sealing, Pages 74-82Chapter eleven - Pump Bearings, Pages 83-91Chapter 12 - Metallurgy, Pages 92-99Chapter thirteen - Pump Drivers, Pages 100-113Chapter 14 - Gears, Pages 114-120Chapter 15 - Couplings, Pages 121-127Chapter sixteen - Pump Controls, Pages 128-136Chapter 17 - Instrumentation, Pages 137-139Chapter 18 - Documentation, Pages 140-145Chapter 19 - Inspection and checking out, Pages 142-145Chapter 20 - install and Operation, Pages 146-150Chapter 21 - Troubleshooting, Pages 151-153Appendix 1 - pattern Pump requirements, Pages 154-159Appendix 2 - Centrifugal Pump info Sheet, web page 160Appendix three - inner Combustion Engine information Sheet, web page 161Appendix four - electrical Motor information Sheet, web page 162Appendix five - Centrifugal Pump package deal, web page 163Appendix 6 - greatest workable Suction Lifts at a variety of Altitudes, web page 164Appendix 7 - advised checklist of proprietors, Pages 165-174Appendix eight - API-610 Mechanical Seal category Code, web page 175References, web page 176Index, Pages 177-182
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Additional resources for An introduction to gymnosperms, cycas, and cycadales
Genomosperma kidstonii. A, seed in median longisection. B-J, successive transections of seed at levels indicated by b-j in A. (all after Long, 1960a). furnished by Xenotheca devonica, Hydrasperma tenuis from Ireland and Archaeosperma amoldii (Fig. 1F). Similar more evolved Carboniferous seeds include Genomospe rma latens (Long, 1961) w here the integumentary lobes are fused up to two thirds of their length from the base and free above (Fig. 5B-E). At the distal end of the seed the integumentary processes coalesce to form a rudimentary composite micropyle.
Mm - megaspore membrane. n - nucellus. pc - pollen chamber. pl- pollen. pr - female gametophyte. s - salpinx. se - sclerotesta. vb - vascular bundle. w - wing. which become hooked to the whip-like processes. Chaloner (1967) mentions a Hong Kong Selaginella whose megaspores reportedly carry its microspores enmeshed in their exine processes in a "vulcro-like" attachment so that they can germinate close by. Pant and Mishra (1986) reported a fossil megaspore which showed a miospore enmeshed in its processes and they thought that the processes made such captive microspores readily available for germination in close proximity.
They are flattened and fused at the base to form a cupule. The multiovulate cupules of Calathospermum jimbriatum (Bamard, 1960, Fig. 11A, J) and C ·lU---f- C9 E Fig. 6. Lagellostoma. A, reconstructed cupule of CalYlIlnzatotheca hOllinghausii showing the contained seed of Lagellostoma lomaxii. B, reconstructed cupule with front half removed to show the seed of L. ovoides. C, Vertically cut half of cupule and seed reconstructed to show details in longisectional view. D-G, successive transections of seed at levels indicated by d-g.