Note 735 — LETTER XIII.

Reaum. Mem. de l'Acad. de Paris, An. 1713.211.—De Geer, vii. 187. See also Hoole's Leeuwenhoek, i. 41.—t. 2. f. 20-22. Leeuwenhoek examined a spinner that was not so big as a common grain of sand, and the number of tubes issuing from it was more than a hundred. He affirms that, besides the larger spinners, in the space between them there are four smaller ones, each furnished with organs for spinning threads, but smaller and fewer in number. Latreille speaks only of a thousand spinners from each teat, and of six thousand threads from the whole—but he does not enter further into the subject. Nouv. Dict. d'Hist. Nat. ii. 278.