All these or their equivalents are used as money of account. “If there is but little coin in Laos,” says M. Aymonier, “there are monies of account in abundance.” In the south-west of the country, Bassak and Attopoeu, Cambodian currency is employed, and they count by the _nên_ or bar of silver. 1 _nên_ = 10 _denhs_ (money of account). 1 _denh_ = 10 strings of _cash_. The _string_ is also money of account and is worth the same as the string of Annam, which is equal to the _sling_ or Siamese franc (which is worth 75 or 80 centimes). The _nên_ is also divided into 100 _chi_, and as there are 100 strings in the _nên_, the string of cash is equivalent to a _chi_ of silver (3·75 gram.). The Siamese coins known also to Cambodia were the weight and money units of the ancient Cambodians, who probably weighed their precious metals. In Laos all of them except the _tical_ are only monies of account. The _tical_ or _bat_ which under the ancient round form[218] was called _clom_ in Cambodia is actually struck as a small piastre in Cambodia and Siam in imitation of European money. This _tical_ is worth 4 Siamese _slings_, but the only monetary division of it known in Laos is the local _lat_ or small ingot of copper. 4 copper _lats_ = 1 silver _tical_ (= 4 _sling_ = 3 francs). 4 _tical_ = 1 _damling_. 20 _damling_ = 1 _catty_ (_chang_). 50 _catties_ = 1 _picul_. The _chang_ or _catty_ of silver is a double one, hence 50 _catties_ of silver are equal to 100 _catties_ of ordinary commercial weight. The _catty_ of silver thus weighs 1200 grammes instead of 600 grammes. They likewise use the _moeun_ of silver = 10 _changs_ = ⅕ _picul_, but more generally the _moeun_ is used as a measure of capacity which contains 20 _catties_ of shelled rice, but as a measure of capacity it varies and is sometimes equal to 20 _catties_, sometimes to 25 _catties_ of rice. That it really is a measure of capacity incorporated at a later date into the weight system like our own _bushels_, _barrels_ and _quarters_, is made probable by the fact that in the provinces of Tonlé, Ropon, and Melou Préy they employ a _tramem_ or _bag_ containing 10 Cambodian _catties_, and in the province of Siphoum the _moeun_ is sometimes the name given to a bag or pannier of a cubit in depth, and a cubit in width at the mouth. It is usually called _kanchoen_ (_pannier_), and contains 25 _catties_ of rice, and 36 _kanchoen_ make a _cartload_.