\subsection{E. Delaval}

Edward \TODO{??? Edmund?} Delaval (1729\EnDash{}1814) was a classical scholar and linguist, and made a European reputation for himself as well as a scientist, chiefly in chemistry and experimental philosophy.  He matters a great deal for our story of the \glassarmonica{}, because Delaval also performed on the musical glasses, having\EmDash{}as he claimed\EmDash{}the largest set in England at the time.\TODO{source???}; and it was Delaval whom Franklin heard and was inspired to invent the glass armonica.

Delaval was a Fellow of Pembroke Hall. Franklin helped his election as a Fellow of the Royal Society in 1759.\footnote{\BrPBF{} 8:359\EnDash{}60} In 1769 Delaval was also on the committee\EmDash{}along with Franklin\EmDash{}appointed by the Royal Society to make recommendations on how to protect St. Paul's Cathedral from lightning strikes.\footnote{\BrPBF{} 16:145ff.} His other scientific contributions included: studying the effects of lightning; advocating the use of blunt lightning rods (instead of pointed, contradicting what Franklin advocated); he studied the specific gravities of several metals and their colors when bonded with glass; and the manufacture of artificial gems.\footnote{\BrDebusA{}, 437} He was a candidate in 1762, and again in 1768, for the Professorship of Modern History at Cambridge\EmDash{}both times unsuccessfully. He was also known as 'Delaval the Loud' for his loud voice.\footnote{\BrGrayQOET{}, letters 461, 494}, or sometimes just called 'Delly' by his friends\footnote{e.g. \BrGrayQOET{}, letters 394, 395, 399, 414, 430}, who considered him 'an honest gentleman'.\footnote{\BrGrayQOET{}, letter 482}

About March 28th, 1760, Thomas Gray described one of Delaval's concerts to his friend James Brown, the Master of Pembroke:

\begin{quote}
We heard Delaval the other night play upon the water glasses, \& I was astonished. No instrument that I know has so celestial a tone. I thought it was a cherubim in a box.\footnote{\BrGrayQOET{}, letter 309}
\end{quote}

On Dec. 8, Gray wrote to Mason:

\begin{quote}
Of all loves come to Cambridge out of hand, for here is Mr. Dillaval [sic] \& a charming set of glasses that sing like nightingales, \& we have concerts every other night, \& shall stay here this month or two\ldots\footnote{\BrGrayQOET{}, letter 351} 
\end{quote}

But before long Gray took a dislike to Delaval and wrote in Jan. 1762 

\begin{quote}
I am still here: so are the glasses \& their master: the first still delight me: I wish I could say as much for the second.\footnote{\BrGrayQOET{}, letter 352}
\end{quote}