116. Literary. Hardships of practical Authors. 
within the period of the last 10 vears; particularly since the 
publication of Mr. Liston’s Essay, in 1812, and since the frequent 
exhibition of his Euhermonic Organs, have given those experi- 
mental and practical illustrations on the subject, which vipehaeh 
were a good deal wanting. 
In the hopes of obtaining answers from several of your Geka 
spondents alluded to, 1 beg to propose to them the following 
Question: which.I have been enabled myself to solve, principally, 
through studying the paper inserted in your last volume, p. 4425 
Viz. 
What are the Ratios, Values (in Mr. Farey’s Netation), . the 
Names, the Vibrations and the Beats in 1” of the three fol- 
lowing ‘intervals, above Tenor Cliff C, viz. GY'b'9  F¥b4, and 
B’e? 
] am, your obedient servant, 
July 26, 1817, Prito-Musicus. 
P.S. It is a good rule, which I have observed Mr. Farey arfd 
other correct Writers follow, of always (or mostly) defining or 
expressing Musical Interv als, in more than one mode, for avoiding 
mistakes or ambiguity, through errors of the press, or miscon- 
vention. I will therefore here, although the literad designation 
of the three required notes w hich are given above, are sufficient 
to determine them; further mention, that their ranges or places, 
ina sufficiently extended Listonian Tuning Table are, —12I11 
—84V, +2111—37V, and III+8V, respectively: na I beg 
to add to my Question above oy nosed; the further request, that 
the answers thereto may, mathematically deduce these latter or 
iuneable definitions of the Intervals, from their literal ones. 
XVII. On the Cases of Injustice which Authors sometimes suffer 
from other Writers, and from Annotators ; particularly the 
late Mr. Jouw Wrintams » Author of ihe * Mineral King- 
dom.” By A Correspon SDENTS 
To Mr. Tilloch. 
sr 
Sir, — ¥ OuR pages, and those of every other independent 
periodical Journal, contain frequent instances of living Authors, 
seeing just occasion of complaint, om the svore of injustice done 
to their literary labours, by other more recent Writers; and some- . 
times also, these complaints are either preferred or seconded by 
others, who have a personal friendship, or else a similarity of 
thinking and feeling, with the writer agrieved: and not unfre- 
quently, persons are seen standing forward as the advocates of 
the reputation of Authors who are deceased, in cases where mani- 
fest 
