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\begin{tabular}{lcccccc} \hline\hline
& & & & & & \\
&${F_{3.29} \over F_{UV}}$(cor)&$R_{ext}^2 \times {F_{3.29} \over F_{UV}}$(cor)&$F_{FIR}$&${F_{3.29} \over F_{FIR}}$(cor)&Spectral&Notes  \\

&&&&&Data& \\

&($10^{-4}$)&($10^2$ AU$^2$)&($10^{-13}$ Wm$^{-2}$)&&& \\
\\
&(10)&(11)&(12)&(13)&(14)&(15) \\
\\ \hline
& & & & & & \\
3.29 $\mu$m feature \\
\\
  Elias 1  &---&---&38&0.0026&BHJLM&a \\
  HD 259431&5.6&$>$ 130&86&0.0038&F&b     \\
  HD 97048 &17&2.1---38.0&40&0.0062&ABCL&a \\
           &&&&&& \\
  V921 Sco &7.1&$>$2700&1300&0.0044&BF  &b \\
  TY CrA   &$>$2.8&$>$0.30&110&$>$ 0.0021&LD&c   \\
  XY Per   &5.9&$<$    1.6&4.4&0.0091&BNP&   \\
           &&&&&& \\
  Lk H$\alpha$ 25&3.4&$<$4.9&---&---&NP&  \\
            &&&&&&  \\
  AS 310    &$>$28&$>$ 340&550&$>$ 0.0029&N&d   \\
            &&&&&&  \\
\\
3.29 $\mu$m feature  \\
in reflection nebula \\
\\
  HD 200775 &5.0&$>$ 720&940&0.0032&I&e  \\
\\
Possible 3.29 $\mu$m feature  \\
\\
  HK Ori    & 22&$<$    0.11&---&---&LN&f   \\
            &&&&&&  \\
  HD 245185 & 4.8&$<$    0.061&3.2&0.0011&N&  \\
            &&&&&&  \\
\\
No 3.29 $\mu$m feature \\
detected but IRAS LRS 7.7 \\
and 11.3 $\mu$m features  \\
\\
 Lk H$\alpha$ 215&$>$11&$>$13&140&$>$ 0.0021&BN&d  \\
 MWC 1080        &$>$ 0.34&$>$ 4.2&45&$>$ 0.0070&EO &d  \\
\\
\hline
\end{tabular}
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\begin{center}
\begin{tabular}{lcccccc} \hline\hline
& & & & & & \\
&${F_{3.29} \over F_{UV}}$(cor)&$R_{ext}^2 \times {F_{3.29} \over F_{UV}}$(cor)&$F_{FIR}$&${F_{3.29} \over F_{FIR}}$(cor)&Spectral&Notes  \\
\\
&&&&&Data& \\
\\
&($10^{-4}$)&($10^2$ AU$^2$)&($10^{-13}$ Wm$^{-2}$)&&& \\
\\
&(10)&(11)&(12)&(13)&(14)&(15) \\
\\
\\ \hline
& & & & & & \\
No 3 $\mu$m spectra \\
but IRAS LRS 7.7 and \\
11.3 $\mu$m features \\
\\
 MWC 137    &---&---&200&$>$ 0.0028&&d   \\
 RCW 34     &---&---&890&$>$ 0.0068&&d   \\
\\
No 3.29 $\mu$m feature \\
detected (this work)  \\
\\
 LkH$\alpha$ 198 &$<$ 8.6&$<$ 6.9&55&$<$ 0.00034&ELN&g  \\
 BD+61154        &$<$ 0.92&$<$ 0.74&---&---&O &         \\
 AB Aur          &$<$ 6.5&$<$ 0.24&68&$<$ 0.0016&EN&h   \\
 T Ori           &$<$15&$<$ 0.11&---&---&BN&   \\
 V380 Ori        &$<$ 5.6&$<$ 0.13&11&$<$ 0.00095&BN&  \\
 HD 250550       &$<$ 5.0&$<$ 0.83&5.0&$<$ 0.0024&LN&  \\
 Lk H$\alpha$ 208&$<$10&$<$ 2.3&5.4&$<$ 0.00062&LN&  \\
 R Mon           &---&---&81&---&EN&  \\
 HD 150193       &$<$ 1.2&$<$ 0.014&---&---&LO&  \\
 HD 163296       &$<$ 1.1&$<$ 0.038&18&$<$ 0.0011&O & \\
 Lk H$\alpha$ 118&---&---&---&---&N & \\
 VV Ser          &$<$ 1.7&$<$ 0.29&---&---&EO &   \\
 WW Vul          &$<$14&$<$ 0.10&2.0&$<$ 0.0047&N  &  \\
 V1685 Cyg       &---&---&---&---&LN&   \\
 V1686 Cyg       &---&---&---&---&N &   \\
 BD+463471       &$<$ 1.0&$<$ 0.037&---&---&LN&   \\
 Lk H$\alpha$ 233&$<$43&$<$ 4.4&17&$<$ 0.00026&LN&  \\
\\
\\ \hline\hline

\end{tabular}
\end{center}
\vfill\eject

\noindent
Notes to TABLE 2

(a) Feature flux from Schutte et al. (1990).

(b) Feature flux from Jourdain de Muizon et al. (1990b).

(c) Feature flux from Whittet et al. (1983).

(d) Total 3.29 $\mu$m feature flux estimated from 11.3 $\mu$m feature (see text).

(e) Upper limit from Sellgren (1984); total feature flux from Sellgren et al. (1985).

(f) Measured flux lower than L(3.45 $\mu$m) photometry in Hillenbrand et al. (1992) by 35 \%.

(g) Measured flux lower than L(3.45 $\mu$m) photometry by 50 \%.

(h) Measured flux higher than L(3.45 $\mu$m) photometry by 60 \%.

\bigskip
\noindent
Other Non-detections

\noindent
V376 Cas (L), RR Tau (B), VY Mon (E), Z CMa (B), HD 53367 (B), KK Oph (B), V856 Sco (L), MWC 297 (BE), R CrA (DL), T CrA (D), PV Cep (GK).

\bigskip
\noindent
Spectral Data

\noindent
A) Aitken and Roche 1981; B) Allen et al. 1982; C) Baas et al. 1983; D) Chen and Graham 1993; E) Cohen 1975; F) Jourdain de Muizon et al. 1990b; G) Sato et al. 1990; H) Schutte et al. 1990; I) Sellgren 1984; J) Tokunaga et al. 1991; K) van Citters and Smi
th 1989; L) Whittet et al. 1983 (see also Blades and Whittet 1980 for HD 97048); M) Whittet et al. 1984;  N) This work, CGAS A; O) This work, CGAS B; P) This work, CGS4.


\bigskip
\noindent
Descriptions of Columns

(1) Estimated spectral type.

(2) Estimated visual extinction in magnitudes.

(3) Estimated distance.

(4) Visual magnitude.

(5) Emission equivalent width of the 3.29 $\mu$m feature.  Error in parentheses.

(6) Observed flux in the 3.29 $\mu$m feature.  Error in parentheses.

(7) Radius of the aperture.

(8) Estimated total flux of the 3.29 $\mu$m feature.

(9) Radius over which the feature is or is not significantly extended.  Estimated values in AU are in parentheses (see text).

(10) Ratio of total flux in the 3.29 $\mu$m feature to the integrated ultraviolet flux of the star after correction for extinction.

(11) Estimate of relative numbers of aromatics in optically thin limit (see text).

(12) Integrated far-infrared flux estimated from blackbody fits (times $1/\lambda$ emissivity) to far-infrared photometry (see text).

(13) Estimate of relative abundance of aromatics (see text).

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