==========================+========+=======+=======+========+======== | Mara- | Cara- | Trini-|Machala | Porta | caibo | cas | dad |Guayaquil| Plata +————————+———————+———————+————————+———————— | ~Per cent~ ==========================+========+=======+=======+========+======== Ash dried at 100° C. | | | | | | | | | | I. insoluble in dilute | | | | | hydrochloric | | | | | or nitric acid: | | | | | a) Volatile dessicated at | 0·113 0·421 | 0·979 | 0·306 | 1·247 100° C. | | | | | b) Fixed at red heat | 1·917 |47·711 |29·315 | 37·662 | 51·513 | | | | | II. Soluble in dilute | | | | | hydrochloric | | | | | or nitric acid: | | | | | c) Potassium oxide K_{2}O | 31·517 |11·812 |25·866 | 23·117 | 12·174 d) Sodium oxide Na_{2}O | 4·188 | 3·298 | 2·726 | 1·210 | 2·780 e) Calcium oxide CaO | 10·134 | 4·458 | 5·097 | 3·503 | 4·401 f) Magnesium oxide MgO | 9·546 | 4·703 | 5·206 | 4·837 | 4·090 g) Ferric oxide | 0·647 | 0·931 | 0·339 | 0·958 | 0·462 Fe_{2}O_{3} | | | | | h) Aluminium oxide | ·281 | 1·554 | 0·710 | 1·854 | 1·046 Al_{2}O_{3} | | | | | i) Silicic acid SiO_{2} | 1·180 | 7·975 | 2·416 | 4·321 | 6·780 k) Phosphoric anhydride | 9·068 | 7·630 | 4·703 | 7·288 | 7·242 P_{2}O_{5} | | | | | l) Sulphuric anhydride | 3·041 | 1·478 | 3·398 | 1·741 | 2·012 SO_{3} | | | | | m) Chlorine Cl | 1·005 | 0·220 | 1·022 | 0·255 | 0·444 n) Carbonic anhydride | 25·454 | 5·399 |16·290 | 11·834 | 4·247 CO_{2} | | | | | o) Water H_{2}O | 2·135 | 2·499 | 2·263 | 1·171 | 1·662 p) Oxygen O equivalent | 0·226 | 0·049 | 0·290 | 0·057 | 0·100 to chlorine | | | | | As evidenced in the preceding examples, data as to the constituents of the cacao husk deviate considerably with different authors. Laube and Aldendorff, for instance, found 14-20 percent, while Zipperer obtained 12-18 percent of husks.