34 
commenced Plate 6, cotton terminal shoots.) August 6 : Commenced Plate 7, young 
boll. August 9: Commenced Plate 8, Orange Aphis, grasshopper, etc. (insects of 
different orders on the same plate). August 16: Commenced Plate 9, orange-scale 
parasites. August 20: Commenced Plate 10, Saturnia Io. August26: Began Plate 11, 
Trichius delta, and cotton flower. (The la3t mention of his plates is in the entry for 
September 25.) Finished Plate 16, corn worm, and have no more plates to do. Have 
written to Washington for them, but, like all I write for, nothing comes. 
After that his only work on plates was retouching and burnishing. 
That these plaies were not nil that he made for the cotton and orange 
series is evident from various allusions to “etching” in the journal 
for the year 1857, while in Mississippi, one entry being “ etching cotton 
blight.” 
The above extracts show the design originally of a work on cotton 
and orange insects, in which the insects of different orders, on the same 
plate, were grouped together indiscriminately. Other plates were pre- 
pared in accordance with this purely economic scheme of arrangement, 
and some of these, on which some one order of insects predominated, 
were afterwards incorporated in the final work, the inappropriate figures 
being burnished out and other insects substituted. Some of these plates 
may be known in the “illustrations” by having a flower or part of a 
plant in the center, around which the figures are arranged. Other 
plates, made in accordance with the purely economic scheme, were sup- 
pressed altogether. * 
I notice in the private journal for 1855, at which time Mr. Glover was 
in Florida and the Oarolinas, under date of June 19, this entry : “ Draw- 
ing and sketching — improved method of coloring — pressed insects.” A 
note-book of this year’s work was filled with lepidoptera drawn (?) after 
this method, the process for which, when Mr. Glover first showed me 
the series, he described as follows: The wings were carefully detached 
and laid in proper position, after which very thin paper, coated with 
some adhesive substance, probably mucilage, was pressed upon them ; 
after going over every portion carefully, with gentle pressure, to insure 
complete contact, the wings were removed, the scales only remaining, 
by which means a very perfect fac simile of the markings was obtained. 
The fragment of paper was then carefully trimmed to exact form of 
wing, glued upon the pages of the note book, body, etc., sketched in , and 
the figure was complete. I think Mr. Glover only employed the process 
(in part) during one or two seasons, as he explained to me that its chief 
use was to save time in making drawings, or the annoyance of carrying 
around a collection of the preserved insects. 
After leaving the Uuited States Patent Office, in the winter or early 
spring of 1859, Mr. Glover gave himself heart and soul to his final con- 
ception of an illustrated work on entomology, for he had realized the 
* The writer has a number of proofs of these, as well as impressions of two or three 
plates as they appeared before alteration and the addition of new figures. (See plate 
XXVII, Coleop. ; Plates III, IV, and V, Orthop. ; Plate XXIV, Lepidop ; and Plates 
IV, V, and VI, Horaoptera, as illustrations of adapted Plates. 
