Title: Mikveh (ritual bath)
Description: A short treatise on weights and measures of the mikveh (Jewish ritual bath). Appended to this are: 1. a statement by a committee of three (Selomo de Oliveira, Ishack Sarruco and Ishack de Mat. Aboab) on the value (Kosher) of the weight and measure of the mikveh of Amsterdam. It is dated 12  Adar Sheny, 5445 -- 2. a discussion by Issac Aboab about the actual  weights and measures of the Rabbis. Includes examples of  the measure of Etsba [finger] and Tefah [handbreadth].

A short treatise on weights and measures of the mikveh (Jewish ritual bath), discussed by Issac Aboab. Includes the following subjects: the quantity of water in a Mikveh (leaves 3b-4a); an alternative way to measure the quantity of water in a mikveh (leaf 4b); a way to verify the quantity of water in the mikveh (leaves 5a-6b);  a way to ritually fit the mikveh  (leaves 7a-7b) ; a way to value ritually fit in a time in which there is no water from rain or from the river (leaves 7b-8a). Appended to this are 1. a statement by a committee of three (Selomo de Oliveira, Ishack Sarruco and Ishack de Mat. Aboab) on the value of the weight and measures of the mikveh in Amsterdam (to check if the mikveh is kosher). It is dated 12 Adar sheny, 5445 -- 2. a discussion by Isaac Aboab about the value of five Selaim for  redemption of the first-born (Pidyon ha-ben) --  3. a paper strip bound into a booklet and divided into 24.5 Polegadas or 17.5 Domis. This is a way to measure the size of a mikveh.
Subjects: Mikveh, Early works to 1800, Weights and measures, Jewish law