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handle: 10261/166094
[ES] El cultivo de algas en condiciones determinadas y regulables es un problema que los distintos laboratorios han resuelto de acuerdo con los propios medios y necesidades. La técnica moderna ofrece recursos suficientes para instalaciones eficaces, pero resultan costosas y no siempre es fácil encontrar los elementos necesarios para su construcción. En estas notas se describe sumariamente un dispositivo usado satisfactoriamente durante un par de años, de construcción sencilla, a base de elementos disponibles en todas partes. Este «ficotrefon» (del gr. [...], alga, y [...], nodriza) consta de dos cubetas de cristal con montura metálica, de 25 cm. de alto, 20 cm. de ancho y 40 cm. de largo, [...]
[EN] Description of a system íor maintaining two sets of algal cultures of 1 l. under the same (or different) illumination and diíferent and controlled temperatures. Inexpensive thermostats (t) of petroleum ether and mercury put into action, through electromagnetic relais, a warming elemente (e) or a cold water circulation unit (b). [...]
5 pages, 3 figures
Peer reviewed
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