To avoid confusion, it is suggested that the ISO 8601 ordinal date format should be adopted for abbreviated dates in Project work, which has been done on this site. As is well known, the Gregorian calendar months have no relation to the lunar cycle, & abbreviations of dates using the year-month-day format are sometimes ambiguous.
For reference, we have a converting calendar in which any date can be looked up, & weekdays if the first day of the year is known.
The use of Universal Coordinated (i.e. Greenwich Mean, or "Zulu") Time is also recommended, whenever confusion may arise.
No style guide presently exists for Project use. It is recommended that the suggestions given by Fowler in Modern English Usage (1926) be followed to the extent practicable. The objective is always to write clearly, with the necessary force, & without creating confusion.
As is well known, the system of two bodies which occupies the third orbit from the Sun more resembles a binary planet than a principal planet & a satellite. The language we use should reflect our understanding of both as celestial bodies, while remaining as clear as possible. It is suggested that the terms "Earth" & "Moon" be used with respect to the phenomena produced by the juxtaposition of the two bodies, while "Terra" & "Luna" should be used of the bodies considered by themselves, or from a distant perspective. Compound words should also follow this rule, while the adjectives should be "terrestrial" & "lunar" (there seems to be no need of coining "moonly" to accompany "earthly") ; in general they should not be capitalized.
Thus, we will have "earthlight" & "the phases of the Moon", but "supplies from Terra" & "pioneers in Luna".
The style presently used for the Papers on the Lunar Settlement is based on the Audio Engineering Society style. As the Papers are intended principally for general dissemination of conclusions & action items, they should usually not include references or calculations, although a brief description of procedure is often useful. Where material of this type is necessary, it should be incorporated in an appendix for separate publication.
Considering the severe fluctuations of international exchange rates & domestic price levels during past few years, even among the so-called hard currencies, it may become necessary to adopt a uniform book-keeping unit for Project activities. Such "monies of account", many of them corresponding to no actual coin or currency, were common in European trade from the XV into the XI century, for similar reasons.
One possible approach to the problem is the adoption of a commodity basis. In other words, we may choose some widely-available substance of recognized & relatively stable value, & define a quantity of it as our money unit.
One popular commodity reference, over the years, has been gold. This is usually priced in the market by the gram or the Troy ounce. Because of the extensive use of gold as money, there are also units with associated accounting systems. These include the American gold dollar, with its multiple the eagle & divisions the dime, cent, & mill ; the German mark ; the Russian rouble & imperial ; & numerous others. The most common are probably the French franc, used under different names throughout the world under the Latin Union system, & the British pound sterling. Gold coins corresponding to both of these units are readily available today at approximately their metal value.
The franc as a unit is generally divided into 100 centimes, & sometimes into 10 decimes or 1000 milliemes. Gold coins exist in denominations of 5, 10, & 20 francs, with exceptional pieces of 50 & 100. The pound was historically divided into shillings, pence, & farthings (£1 = 20s = 240d = 960 farthings, typically written ¼d when necessary), although divisions into mils (£1 = 1000) & piastres (£1 = 180) were also encountered. In Britain today the much-depreciated pound is divided into decimal pence (£1 = 100p).
Curiously, the pound did not exist as a distinct coin until quite recently, being rather a unit of account. In the XVIII century the usual gold coin was the guinea, which from the time of Queen Anne had a value of 21 shillings, accompanied by its half & third (10/6 & 7s respectively). On the advice of a Parliamentary committee, the guinea was discontinued after the Napoleonic wars, in favour of an older coin called the sovereign. This was valued at twenty shillings, & was therefore equal to one pound. The sovereign is by far the most common British gold coin, although half-sovereigns (worth 10s) are not rare, & double & quintuple sovereigns were also struck from time to time.
We may tentatively recommend the adoption of the sovereign as the unit of account, with a division into mills (although the more complex traditional system may be said to have the advantage of ensuring concentration). It is a fairly convenient size, 113.00 grains or 7.3224 g of fine gold, & any amount of currency can thus be converted to sovereigns by dividing it into the local price of fine gold, & multiplying by 7.3224 for the gram price or 0.23542 for the ounce price.