Cleve or Kleve), a town of Germany in the kingdom of Prussia, formerly the capital of the duchy of its own name, 46 m.
Cleve, the first to make a really thorough study of these elements and their compounds.
Cleve proposed to divide the " rare earth " metals into two groups, (1) " perfectly characterized "; (2) " not yet thoroughly characterized."
De Marignac, a noted worker in this field, delivered by Cleve, a high authority on this subject, before the London Chemical Society (J.
Scandium possesses great historical interest, for Cleve showed that it was one of the elements predicted by Mendeleeff about ten years previously from considerations based on his periodic classification of the elements (see Element).
He established the existence of two new elements, samarium and gadolinium, since investigated more especially by Cleve, to whom most of our knowledge on this subject is due.
Cleve, Lecoq de Boisbaudran and others into erbia, holmia, thulia and dysprosia, but it is still doubtful whether any one of these four splitting products is a single substance.
Cleve (Comptes rendus, 18 79, 89, p. 47 8; 1880, 9 1, pp. 328, 381; 1882, 95, p. 1225; Bull.
The plankton is divided into (a) the Zoo-plankton (such as the minute crustacea and the eggs and larva of fishes and many other marine animals); and (b) the Phyto-plankton, that is, the minute algae, diatoms, peridinians, some flagellate protozoa, spores of alga, etc. The investigation of the plankton from a new point of view, begun by Hansen in 1889, was continued by Lohmann at Kiel, by Cleve in Sweden, by Gran and Ostenfeldt in Norway and Denmark, and by Herdman, Allen and others in England.
Cleve, printed in the Journal of the London Chemical Society for 1895, contains a list of Marignac's papers.
Ann., 18 75, 1 55, p. 377); P. Cleve (Bull.
Nilson and was shown by Cleve to be identical with the ekaboron predicted by D.
Berzelius found 235.5; Delafontaine, 229.7; Cleve, 232.6 by analyses of the sulphate, and 232.2 by analyses of the oxalate.