Ten years of the world's progress : being a supplement to the work of that title, 1850-1861 : with some corrections and additions to the former pages /

Mode of access: Internet.

Tabulae atomicae : the chemical tables for the calculation of quantitative analyses of H. Rose. Recalculated for the more recent determinations of atomic weights, and with other alterations and additions /

Mode of access: Internet.

A series of designs, for shop fronts, porticoes, and entrances to buildings, public & private /

Mode of access: Internet.

Notes and additions to the history of Gloucester : second series /

Includes extracts from Samuel Chandler's journal for 1751-1764.

Canopy dweller

This article discusses the renovation of a house located in western Brisbane, Queensland, originally designed by architects Lindsay and Kerry Clare and now renovated by architect Stuart Vokes of Owen and Vokes. Features of the renovation include keeping the Queenslander style while updating with new timber finishing, white painted surfaces, opening up living areas and designing a new kitchen.

A botanical description of British plants in the midland counties, particularly of those in the neighbourhood of Alcester; with occasional notes and observations; to which is prefixed a short introduction to the study of botany, and the knowledge of the principal natural orders /

Plates in vol. 1-2 from James Sowerby,s "English botany".

Electronic Control of Facial Selection in Additions to Sterically Unbiased Ketones and Olefins

By definition, the two faces of a pi bond are equivalent.1 However, they are rendered nonequivalent in most molecules because of the absence of a plane of symmetry encompassing the double bond and the adjacent substituents. As a result, additions to trigonal centers from the two faces need not be equally facile. Exploiting this stereodifferentiation in a controlled manner represents one of the core problems in organic synthesis. Evidently, the factors which determine such diastereoselection need to be delineated in as much detail as possible.

Nucleophilic additions to 4-substituted snoutanones: getting a measure of long range electrostatic and orbital control of pi-face selectivity

Pentacyclic ketones 10a-e (snoutan-9-ones) undergo nucleophilic additions with the same facial preference as the corresponding norsnoutanones 9a-e, but with markedly reduced selectivity, revealing the involvement of electrostatic effects in the former and implying the importance of hyperconjugative orbital interactions in determining pi-face selectivity in the latter systems.

Electrophilic additions to 7-methylenenorbornenes and 7- isopropylidenenorbornenes:can remote substituents swamp electrostatic control of π-face selectivity

pi-Face selectivities in electrophilic additiions (typically CCl2) to 7-methylenenorbornenes and 7-isopropylidenenorbornenes are modulated by endo-substituents.

Additions to a revision of the shark genus Carcharhinus: Synonymy of Aprionodon and Hypoprion, and description of a new species of Carcharhinus (Carcharhinidae)

Features of the valid nominal species of Aprionodon Gill (isodon Valenciennes) and Hypoprion Muller and Henle (hemiodon Valenciennes, macloti Muller and Henle, and signatus Poey), plus those of a previously unrecognized species here described as Carcharhinus leiodon n.sp., are examined and compared with those of Carcharhinus Blainville. Features studied include morphometrics, vertebral numbers and other vertebral characteristics, tooth numbers, color pattern, and some other aspects of external morphology. It is concluded that on these features C. leiodon n.sp. is entirely encompassed within the parameters of Carcharhinus, and that, although A. isodon, H. hemiodon, H. macloti, and H. signatus each extend the range of diversity of Carcharhinus in one or more features, A. isodon is not uniquely different from Carcharhinus, and there is no common pattern of difference between the three species of Hypoprion and Carcharhinus. Accordingly, and because the nature of the teeth of Aprionodon and Hypoprion has been found insufficient to warrant generic distinction from Carcharhinus, the genera Aprionodon and Hypoprion are synonymised with Carcharhinus. A diagnosis and description are given for each of the above species. The descriptions include measurements, counts, and line illustrations that show the whole shark in lateral view, underside of head, nostril, and teeth. The geographic distribution is summarized, as are also the meager biological data available on number of embryos, size at birth, size at sexual maturity, and maximum size. (PDF file contains 32 pages.)

Additions and corrections to “Terminal coalgebras in well-founded set theory”

This note is to correct certain mistaken impressions of the author's that were in the original paper, “Terminal coalgebras in well-founded set theory”, which appeared in Theoretical Computer Science 114 (1993) 299–315.