IM BRITISH ENTOMOSTRAt \ 



In Number '2*3 of the ' Philosophical Transactions' for 

 January and February, 1703, the same author gi\es a 

 description of a polype (the Jli/drtt /-/V/V/Y.v of Midler) 

 growing upon the leinna, or duck-weed, which calls forth 

 another paper from an anonymous correspondent, in 

 Number 288, for November and December, 1703, in 

 which the writer mentions his having frequently observed 

 the same polype growing upon insects, especially upon 

 " tw r o sorts, of the crustaceous kind." Of these two 

 >pecies of animals, which he states are monoculous he gives 

 figures, sufficiently correct to show them to be tlaeCyclops 

 qitadricornis and l)i(i/)lotm'H ('ax/or, the first being a tole- 

 rable figure, though the second is very indiU'erciit. 'flu- 

 same writer also takes notice of a third animal of the 

 same family, which is much smaller, and like a shrimp, 

 but which he could never figure, evidently the Canllio- 



r(H,i/)li/x nil II li I US. 



Baker, in his '.Microscope made Easy,' L 74 3, makes 

 a few remarks upon the same animals, and copies the 

 figures from the 'Philosophical Transactions;' and in his 

 'Employment for the Microscope,' 1 7(> t, he publishes a 

 letter from a correspondent, who gives a variety of details 

 with regard to the animal which Leeuwenhoek describes, 

 finds great fault with his figure, but gi\es a much worse 

 one himself! 



L)e (Jeer, in his ' M ('moires pour servir a fllistoire di -s 

 Insectes/ vol. vii, published in 1778, is the next author, 

 t believe, who has entered into any details relative to this 

 family. lie describes at considerable length, and figure- 

 \\ith tolerable accuracy, the Cyclojix <///(i</r/<-<>rnix, and 

 i -01 1 linns many of Leeuwenhoek's >tatemcnts respecting it, 

 particularly the great difference between the young and 

 the old animal. 



Otho I'Yidcrieus M filler* is the next succeeding author 

 who has particularly noticed the family. Previous to his 



* /(K.li.ir. D:iu. IWi-uiii., L/70; Eiitoiuobtiaca, bcu ln>n,;i 1 



&c.. 1785. 



