VIII. An extract of a letter from Mr. Anth. Van. Leeuwenhoek, containing several observations on the texture of the bones of animals compared with that of wood : on the bark of trees : on the little scales found on the cuticula, &c

Abstract

I Some years since writ Mr. Oldenburgh , That I conceived the Bone to be constituted of Globules ; but finding my Mistake, I retracted that Opinion : For what I then took for Globules, was the tops of the Tubes or Cilinders whereof the Bone is composed.