We have observed BD +30 3639, IC 418, NGC 6572, NGC 6543, NGC 3918, NGC 2440, NGC 3242, A30, Ml-78, and NGC 6210 in two broad passbands with effective wavelengths of 35μand 75μ. All were detected at 35μ, and all but IC 4997 at 75μ. Their spectral energy distributions are similar in that most have peak flux densities at wavelengths ranging from 30μto 45μ. The two nebulae with markedly different energy distributions are IC 4997, which has a hot spectrum peaking near 20μ, and Ml-78, whose flux density rises rapidly from 35μto 75μ, characteristic of compact H II regions.