Daytime (or dayside cleft) aurora is almost a permanent feature of the midday skies over Spitsbergen during the continuous darkness of the polar night It was observed in one or other of its characteristic forms around geomagnetic noon on 58 of 59 clear day sduring the wintersof 1987/1988, 1990/1991, and 1992/1993. The three types of day time aurora were studied by visual, colour photographic, and interference-filter techniques to confirm the precise nature of the observed emissions. Prenoon aurora, which is characterised by diffuse, patchy, green aurora at 557.7 nm, was observed on 42 occasions. It is generated by low-energy electrons of less than 300 eV coming through the entry layer of the dayside cleft. Noontime aurora, which consists largely of pure red emissions at 630.0/636.4 nm, was observed on 50 occasions. It is generated by high-flux, very low-energy electrons of 10–50 eV flowing directly from the solar wind through the polar cusp. Postnoon aurora, which is characterised by discrete, green auroral arcs at 557.7 nm, was also observed on 42 occasions. Like prenoon aurora, it is generated by low-energy electrons of less than 300 eV derived from the entry layer of the cleft Occasionally, some background or diffuse aurora is also observed, generated by high fluxes of low-energy proton precipitation and characterised by the hydrogen lines Hα and Hβ. On the one exceptional day on which daytime aurora was not observed, magnetic activity was exceptionally low.

These ground-based observations complement satellite studies of analogous auroral events. In particular, the visual characteristics of the different types of daytime aurora may be explained in terms of the flux rates and energy profiles of the electrons that have been mapped in the different regions of the dayside cleft by satellite-borne detectors.

Following his return from participating in John Franklin's first overland expedition (1819–1822), Willard Wentzel, a clerk for the North West Company, produced a map of the Mackenzie River and a brief account of its geography, native peoples, and history and significance as it related to the North West Company. This map and the account, which is one of the few early descriptions of the Mackenzie River area, are held in the Royal Commonwealth Society Papers at the University of Cambridge. They have not previously been published.

Antarctic tourism is evolving at an ever-increasing pace. More than 7000 tourists, a record number, visited the Antarctic aboard cruise ships, yachts, and aircraft during the 1992/1993 season. As annual tourist, tour operator, cruise, and cruise ship totals increase, so do the number of landing sites used for tour visits. Although the Antarctic tourism industry was once characterized by small expedition-sized vessels, 50% of Antarctic cruise passengers travelled aboard ships with a capacity of 250 or more during the 1992/1993 season. These developments present challenges to Antarctic policy makers. There is growing awareness that environmental issues arising from Antarctic tourist activity are increasingly important, but, to date, comprehensive data on Antarctic tourism are not available from a central source. This study compiles data from numerous sources in order to develop a clearer picture of the nature and scale of Antarctic tourist activity. In an effort to present an overview of Antarctic tourism, data from the 1992/1993 season are considered along with important issues in the tourism debate, including significant trends and recent developments in the tourism industry, Antarctic tourism research, tourist landings in Antarctica, industrial self-regulation, emerging issues, Antarctic Treaty negotiations on tourism, and national initiatives to improve dialogue between the industry and Antarctic policy makers. Research is underway to understand better the nature of tourist visits and the effect they have on the Antarctic environment and related ecosystems. The International Association of Antarctica Tour Operators (IAATO) plays an important role in disseminating information to tour operators planning visits to the Antarctic, but more could be done by this organization and non-members of IAATO to comply with Treaty provisions. Improved compliance with Treaty provisions and tour operator and visitor guidelines is needed, at least until the environmental effects of tour visits are better understood and the more comprehensive regulation set out in the Protocol on Environmental Protection to the Antarctic Treaty is implemented.

In 1914 the Northern Exploration Company of London employed Commander Victor Campbell (the leader of the Northern Party of Robert Falcon Scott's Terra Nova expedition of 1910–1913) to voyage to Spitsbergen in charge of a mineral-prospecting team. Campbell sailed in the schooner Willem Barents, taking Michael Barne (the second lieutenant on the British National Antarctic Expedition of 1901–1904) as mate. There was a mixed British and Norwegian crew. Between May and August, Campbell took the schooner to various sites between Recherchefjorden and Krossfjorden on the west coast of Spitsbergen, maintaining two-way contact with London through the Norwegian radio station at Grønfjorden. Hearing that war was about to break out, the expedition visited the German meteorological station at Ebeltofthamna, then sailed back to Norway, from where the British members returned to England.

Under the regime established by the Antarctic Treaty of 1959, decision-making remains exclusively with the limited number of states that are entitled to appoint representatives to participate in Antarctic Treaty Consultative Meetings. Whereas the 12 original signatory states have a permanent right to attend these meetings, acceding states may gain consultative status only during the time they carry out substantial scientific research in the Antarctic. This paper addresses three issues: the first relates to the problems arising out of the ‘admission procedure’ adopted by the original signatory states when faced with the first application of an acceding state to become an Antarctic Treaty Consultative Party, a procedure that has been applied ever since to similar cases. The second looks at the forms of scientific research activities an acceding party ought to conduct in Antarctica in order to meet the requirements laid down in the Antarctic Treaty. The third deals more generally with the issue of limited participation in the Antarctic Treaty decision-making process, which has come under severe criticism from non-Consultative Parties and states that have not acceded to the Treaty.

The insect fauna of Heard Island were investigated on the ChallengerExpedition in 1875 (Kirby 1884); the Deutsche Sudpolar-Expedition in 1902 (VanHöffen 1912); and the Australian National Antarctic Research Expedition in 1951/52(Brown 1964; Gressitt and Temple 1970; Home 1984). With the addition of Lepidoptera in these last reports, six orders of insects were recognised as occurring on Heard Island, the others being Collembola, Coleoptera, Diptera, Siphonaptera, and Mallophaga. The present note reports the addition of a seventh order, Thysanoptera, to the fauna.

As is well-known, Kotzebue Sound in Alaska is named after Otto von Kotzebue, who surveyed the area during his second circumnavigation of the globein 1815–1818. However, Otto was not the only member of his family worthy of attention. His father, August von Kotzebue, was the author of Count Benyowsky, one of the earliest plays the action of which is set in the north. The work was written in German in 1794 and was widely translated. In English, in B. Thompson's translation of 1800, it received the subtitle ‘The conspiracy of Kamtschatka.’