382 Dr. Hagen's and the Kev. A. E. Eaton's 
Page 2. [Dr. Hagen states that Say's collection is 
destroyed.] Harris's collection [in the Museum at Cam- 
bridge, Massachusetts] is in very bad condition. It con- 
tains some Ephemei'idcB named by Say himself, but none 
of those described by him [see Note to p. 8]. Walsh's 
collection is noAv in the Chicago Museum. I do not know 
whether anyone takes care of it. [Has it survived the 
fire ?] I possess types of his species [see Note to pp. 13, 
14.] Besides the Walsh types, my collection contains, 
with few exceptions, the types of only my Ceylon and 
American Synopsis, and these are in good condition [see 
Note to pp. 13, 14.] From Zetterstedt I possess only 
two types [see Notes to pp. 10 and 88] ; from Burmeister 
one [see Notes to pp. 10 and 96.] 
Page 3. 1552. — In Wotton, De differentiis animalium, 
&c., p. 193, is something about the occurrence of Ephe- 
mera on the river Hipparis. [Fiume di Camarana, Sicily. 
This work is not cited by Pictet.] 
Page 3. 1680. — Blegny -saoU be found in Banks' 
Library in Bunnefs Zoodiucus medico Gallicus. 
Page 3. 1708. — [Ray in his Methodus Insectorum 
(1708) and His fo7'ia. Insectorum (1710) described classes 
from the metamoi'phoscs, and constructed orders from the 
number of the feet of insects. His Class II. Metamor- 
phota. Order i., Larvis et pupis agilibus, woidd comprise 
the Ephemerid(E.~\ 
Page 3. 1718 and 1723. — Baier and Kulmus are not 
important so far as I remember. 
Pages 4 and 17. Linne in Elenchns anim. per Suecica 
ohservata, p. 78, gives three species o^Ej)hcmera. " 1. Eph. 
alis maculatis. Swam. Tract, de Ephemera. 2. Eph. alis 
incrassato albis (bioculata). 3. Eph. alis albis minima 
(horaria)." Not a word more. 
In Miracula Insectorum (Amccnit. iii.) he says, "Ephe- 
mera Fn. Suec. 754 (E. horaria) miraculosa "\adetur, quod 
tunica pupulas deposita, perfecta per integrum diem vix 
vivet, quo brevissimo tempore spatio acre delectatur, nup- 
tias celebrat, parturit, moriturque." So far as I know, 
nothing more is given by Linne. 
