Table 2: Visual spectrum of NGC 40 (unreddened intensity in units of 10-12 erg cm-2 s-1).
$\lambda $ Ion Intensities Unred.
(Å)   (1) (2) (3) intens.
3727 [O II] 264 264 253 657
3869 [Ne III] 0.25     0.59
4068 [S II]   3.0 2.3 6.8
4076 [S II]   0.91 0.8 2.1
4102 H$\delta$ 19 19 23 42.4
4267 C II 0.35     0.72
4340 H$\gamma$ 39   43 81.0
4363 [O III] 0.13:     0.27:
4471 He I 1.9 2.1 3.2 4.2
4861 H$\beta $ 100 100 100 173
5007 [O III] 19 12 29 43
5518 [Cl II] 0.25: 0.26   0.35:
5538 [Cl II] 0.35: 0.26   0.47:
5755 [N II] 2.7 3.1   3.7
5876 He I 9.0 9.1   11.3
6312 [S III] 0.74 0.72   0.86
6563 H$\alpha$ 480 500   520
6584 [N II] 450 460   490
6717 [S II] 15.4 18   18
6731 [S II] 23.2 22.5   25
7136 [Ar III] 6.9 8.9   8.0
7320 [O II] 11.5     11.4
7330 [O II] 9.7     9.4
9531 [S III]       227*
(1) Clegg et al. (1983), (2) Aller & Czyzak (1979), (3) Aller et al. (1972).
The (:) indicates uncertain values.
* The [S III] $\lambda $9531Å intensity was taken from Hippelein & Munch (1981).

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