ROESEL VON ROSENHOF 303 



first description of that Amoeba which has since become 

 so famous. 



Imitators of Roesel 



Martin Froben Ledermiiller published at Niirnberg 

 in 1760-3 a Microscopic Delight for mind and eye 

 (Mikroskopische Gemuths- und Augen-Ergotzung), which 

 is chiefly remembered as the first book in which the 

 Infusoria are separated under that name. Martin 

 Slabber's Natural History Recreations {Natuurkundige 

 Verlustigingen), published at Haarlem in 1778, contains 

 the first figures of a Sagitta, of a rock-barnacle nauplius, 

 of a stalked-barnacle nauplius, and of the Noctiluca 

 which makes sea-water luminous. 



THE INVESTIGATION OF THE PUSS MOTH 

 1634-1892 



Ever since the days of Eay and Willughby careful 

 observers had been noting the structure and habits of 

 common insects, each adding some interesting detail to 

 those which he found already recorded. Let us take a 

 siugle case as an es.ample of many. It would not be 

 easy to make a better choice than the Puss Moth, a 

 large and conspicuous insect common in Central Europe, 

 and so peculiar in its early stages as to tax whatever 

 powers of observation, description and delineation the 

 naturalist may happen to possess, besides raising hard 

 questions, which demand a knowledge of other things 

 than natural history. 



Moufet ^ gives six lines and a rude figure to the Puss- 

 moth caterpillar, making mention of its coal-black eyes 



^Ineectorwm Theatrum, p. 183 (1634). 



