Abstract: An anti-pollution combustion device has a bowl in the interior of which is located, above the connection between the bowl and stem, a perforated metal disc so that the tobacco rests on the same. The outside of the bowl is formed with circumferentially extending cooling ribs. The inside of the bowl is lined with a material which prevents the wood of the bowl from charring. In the smoke passage of the stem is incorporated a filter which can be changed when it is saturated with contaminants. Near the rear end of the stem there is provided a trap with a reservoir in which liquid is trapped and accumulated so that from time to time it can be discharged from the reservoir. The rear end of the stem is provided with a mouthpiece having an annular member projecting transversely of the elongation of the stem and large enough to securely retain the mouthpiece between the teeth of a user, even if the user should have false teeth.

Abstract: A trap for crawling insects, such as cockroaches, comprises a container with a detachable lid having an opening large enough to admit an insect, this opening giving access to a supply of bait on the container bottom. A downward extension of the lid adjacent its opening, such as a collar surrounding that opening, terminates high enough above the bottom to allow the insect to drop down onto the bait but not to return to the opening by the same path. The inner peripheral wall of the container is coated with a slippery film, preventing the insect from climbing that wall. The bait may be contained in a cup-shaped receptacle on the container bottom.