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could not imagine for what purpofe it was dofigned ; but now I 

 perceived, tliat it extended over that part whence the eggs iiTued, 

 and I therefore conjectured that its ufe was to depofit them in regu- 

 lar order within the web prepared to receive them. To give fomc 

 reprcfentation of thefe parts, I caufed a drawing to be made of a 

 middling (ized Spider, lying flat on its back, with the legs contracted, 

 as if it were dead. This i.s lliewn mfg. 23, ABC, and near to letter 

 D is the hook juft mentioned. 



This hook I then leparated from the Spider's body, and placing it 

 before the microfcope I delivered it to the limner, that he might 

 make a drawing of it as it appeared to him. This drawing is given 

 a.tjig. 24, GHIK, and therein between the letters I and K, certain 

 folds or wrinkles appear, this organ being fo formed as to have a 

 greater extent of motion and action than ufual. The letters E F 

 denote that part which was joined to the Spider's body. 



On the firft of January, I put fome Spider's eggs into a glafs tube 

 which I conftantly carried about me, in order to difcover whether by 

 the warmth I imparted to them, they would be hatched fooner than 

 the ufual time, w'hich is in the fpring ; and on the 17th of January 

 I faw above twen.ty five young Spiders compleatly hatched, and as 

 many more half way out of the eggs ; and in the evening of the 

 fame day I counted above an hundred and fifty young ones. Tiie 

 next day, the number was not incrcafed, for the reinainder of tlie 

 eggs, to the number of fifty, or thereabouts, were either barren, or 

 the young Spiders were dead within them. 



Upon expofing the glafs tube at this cold feafon, to the air for 

 about a quarter of an hour, the young Spiders lay without motion, 

 but upon applying fome warmth to it, they began to move, and the 

 greater number of them crouded themfelves together in an heaji, 

 after the manner o[' bees, within the web where the eggs Had been. 

 On the 21ft of January I could difcern eight eyes in each of them. 



