358 
LEEUWENHOEK AND HIS ‘“‘ LITTLE ANIMALS” 
SYNOPSIS OF LEEUWENHOEK’S “ FIRST 27 LETTERS ’’—continued 
Letter 
No. 
21 
21a 
24 
25 
26 
27 
Addressed to 
H. Oldenburg 
Viscount 
Brouncker 
Viscount 
Brouncker 
R. Hooke 
N. Grew 
N. Grew 
N. Grew 
N. Grew 
H. Oldenburg 
H. Oldenburg 
H. Oldenburg 
Date 
30 Oct. 
23 Mar. 
14 May 
5 Oct. 
16 Oct. 
.. Nov. 
14 Jan. 
18 Mar. 
31 May 
27 Sept. 
21 Feb. 
1676 
1677 
1677 
1677 
1677 
1677 
1678 
1678 
1678 
1678 
1679 
Roy. Soc. MS. 
L.1. 24 
L.1. 25 
ly 2 
ed; 29 
L.1. 32 
[No MS.] 
L.1. 33 
Lil. 34 
L.1. 36 
Ll. 88 
[No MS.] 
Published in Phil. Trans. 
Unpublished 
Vol. XII, No. 134, pp. 844-846. 1677. 
{Incomplete English translation. ] 
Vol. XII, No. 136, pp. 899-905. 1677. 
[English translation. A full Latin 
translation of this letter was pub- 
lished later in Derham’s Philos. 
Ezpts. & Obss. of R. Hooke (1726), 
pp. 65-74. ] 
(Not in Phil. Trans. English ex- 
tracts published in R. Hooke’s Lect. 
& Collect, (1678), Part II, Letter 1, 
pp. 81-83: reprinted in his Lect. 
Cutlervanae (1679).] 
Unpublished 
Vol. XII, No. 142, pp. 1040-1043. 
1679. [Full letter, in Latin. ] 
[Not in Phil. Trans. English ex- 
tracts published in Hooke’s Lect. € 
Collect. (1678), Part II, Letter 2, 
pp. 84-89: reprinted in his Lect. 
Cutlervanae (1679). ] 
Vol. XII, No. 142, p. 1044. 1679. 
(Abstract, in Latin. } 
Vol. XII, No. 140, pp. 1002-1005. 
1678. [Two extracts, in English.] 
Vol. XII, No. 142, p. 1045. 1679. 
[Latin summary of another part of 
letter. ] 
Unpublished 
Unpublished [This letter is men- 
tioned by L. in his letters dated 
13 June 1679 (No. 28a, unpublished), 
13 Oct. 1679 (No. 280, unpublished), 
and 25 Apr. 1679 (No. 28— published 
in Dutch and Latin printed works). 
It was apparently lost in trans- 
mission. ] 
Addendum.—All the Letters marked ‘‘ Unpublished” in the foregoing 
list have now (with the exception of the last, which still remains lost) been 
printed in full in Vol. IX of Opuscula Selecta Neerlandicorwm, Amsterdam, 
This volume has appeared too late for its contents to be considered 
in the present work. 
1931. 
