 | H. J. Lloyd - 1828 - 80 pages
...is said to have at times a purple tint. In the Gulf of Guinea the sea is white ; around the Maldive Islands it is black ; and in some places it has been...are commonly muriatic or marine acid, sulphuric acid (vitriol), fixed mineral alkali, magnesia, and sulphated lime. By boiling or evaporation in the air,... | |
 | 1834 - 578 pages
...is said to have at times a purple tint. In the Gulf of Guinea the sea is white ; around the Maldive Islands it is black ; and in some places it has been...are commonly muriatic or marine acid, sulphuric acid (vitriol), fixed mineral alkali, magnesia, and sulphated lime. By boiling or evaporation in the airj... | |
 | Ireland commissioners of nat. educ - 1835 - 398 pages
...is said to have at times a purple tint. In the gulf of Guinea, the sea is white ; around the Maldive islands it is black ; and in some places it has been...parts, in addition to pure water, are commonly muriatic acid, sulphuric acid (vilfiol,) fixed mineral alkali, magnesia, and «ulphated lime. By boiling or... | |
 | 1836 - 424 pages
...said to have at times a purple tint.- In the gulf of Guinea, the sea i« white ; around the Maldive islands it is black ; and in some places it has been...in addition to pure water, are commonly .muriatic acid, sulphuric acid (vitriol,) fixed mineral alkali, magnesia and sulphated lime. By boiling or evaporation... | |
 | William Martin - 1838 - 368 pages
...is said to have at times a purple tint. In the gulf of Guinea, the sea is white ; around the Maldive islands it is black ; and in some places it has been...parts, in addition to pure water, are commonly muriatic acid, sulphuric acid (vitriol), fixed mineral alkali, magnesia, and sulphated lime. By boiling or evaporation... | |
 | Richard Phillips (sir.) - 1851
...tinge ; and of a similar colour in the Red Sea, whence its name. Changes of colour are sometimes caused by the nature of the soil, or by the infusion of certain earthy substances iu the water. Green and yellow shades frequently proceed from the existence of marine vegetation at... | |
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... and depth, makes them undergo a strong refraction. The other colours exhibited in parts of the sea depend on causes which are local, and sometimes deceptive. The Mediterranean in its upper part is said to have at times a purple tint. In the Gulf of... 