Letter 28 of April 25, 1679 Figure | Levende Dierkens

The testicle of a dog after the second skin had been taken off; the second skin sticking to the testicle; the vas deferens; the food-carrying sperm-vessel (otherwise called vas preparans).

De testicul van de hond na sijn tweede huijt ontbloot; de tweede huijt die aende testicul vast is vereenicht; het vas deferens; het voetsel toedragende saet vat (anders genaemt vas preperans).

Origin of specimen: 
a Delft labourer who also applies himself to the castration of dogs and cats. He brought to my house two dogs whose testicles he took out in my presence.
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Letter of: 
April 25, 1679
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