4 Rev. A. E. Eaton’s Monograph 
1742 (Réaum.). R. A. F. de Réaumur, Des Mouches appellés Ephé- 
méres ; Mém. pour servir 4 Vhist. des Ins. vi., pp. 457-522, pls. xlii-xlvi. 
1746 (Col.). P. Collinson, Some observations on a sort of Libella or 
Ephemeron; in Phil. Trans. vol. xliv., p. 329, pl. ii. 2-4. 
1746 (Lin. F. 8. i). K. Linné, Fauna Suecica, ed. i. pp. 226-7, Nos. 
750-5. 
[In Linné’s own interleaved copy of this work, MS. names are written 
before the index numbers ; viz. :—‘‘vulgata’’ before 750; ‘ bioculata”’ 
before 751; “mutica” after 752; ‘* culiciformis”’ before 753; “horaria”’ 
before 754, above “minima” erased; and ‘‘vespertina”’ before 755. Re- 
ferences are made in the text to some of his earlier publications; viz. :— 
after 751, Acta Upsal. (1736) p. 27.2; after 754, Act. Ups. p. 27. 3; 
and to his Iter @land. (Hlandska Resa, 1745) p. 21. 
In his cabinet are—2 @ sub. spurious, and 1 ¢ sub. ticketted 750 
(perhaps by Linné junr.) of HE. vulgata; 2 g im. spurious, of L. margi- 
nata; 1 @ sub. spurious, and 1 9? sub. ticketted nigra” in Linné’s 
MS., of L. marginata; 2 9 im. spurious, labelled “ culiciformis,” of 
a Cenis; 2 2 im. spurious, of C. dipterum; 1 g im. ticketted 751 (in 
the same handwriting as the 750 under the Z. vulgata g sub.) of Siphlu- 
rus Linneanus, nov. sp.; and 2 2 im., unlabelled, and spurious, of 
Heptagenia elegans. 
The Librarian of the Linnean Society (who rendered me every assist- 
ance during my examination of the collection), thinks that the numbers 
750 and 751 are Linné’s autograph, as the “ nigra’? undoubtedly is. 
There is a close resemblance between these figures and certain others in 
the handwriting in the Author’s own books. However, notwithstanding 
that the tickets are apparently in Linné’s autograph, and the specimens 
are seemingly Linnean, it is evident that the specimens ticketted 751 and 
nigra are not authentic, because they altogether disagree with the diag- 
noses 751 in F. §.i., and 1478 nigra in F. S. ii., respectively. The MS. 
reference to ‘* Schaef. ic. 175, f. 1, 2” under E. bioculata (an entirely dif- 
ferent insect from the one figured) in the Author’s own copy of 8. N. 
Xll., suggests the possibility of the specimens in question haying been 
placed by Linné in his cabinet after the publication of 8. N. xii.; and 
if this were the case, these specimens having been newer than the 
original types, it is likely that they may have been in a better condition 
than those, and thus have stood a greater chance than they of being kept 
by the owner.] 
1747 (Lin. 8. N. v.). K. Linné, Systema Nature, ed. v. [Reprinted in 
1748.] Ordo 3, Neuroptera, p. 62. E. maculata, E. minima. 
1749 (Rees.). A. J. Résel, Insecten Belustigung. ii. 53-60, pl. xiii. 1-6, 
[Pictet quotes certain names as of the authorship of Résel (whose de- 
scriptions and figures are not named). These names probably originated 
in C. Schwarz’s ‘‘ Nomenclator tiber die in den Réselschen Insect. Belust. 
&¢.,”” which was published many years later (1793-1830.] 
; *1753 (Pontop.). E. Pontoppidan, Det forste Férség paa Norges natur- 
lige Historie. Vol. ii. ch. ii. (An edition in German, 1754, and another 
in 1765; see Pontop. 1765). 
1755 (De G.). K. de Geer, Observations sur les Ephéméres; in Mém. 
Say. Htr. Acad. Paris, ii. 461-9. pl. xvii. 1-2. 
*1757 (Schef.). J. C. Schaffer, Das fliegende Uferaas oder der Haft 
&e., p. 84. [Reprinted in his ‘‘ Abhandlungen yon Insecten,’’ iii. 30, pl. 
i.] (Hag. and Pict.). 
