If the Copyright Office has no confirmation that a composer or song-writer is still living and it has been 75 years since the first copyright protection order was granted, or 100 years since the recognized creation date of the piece, it becomes public domain.
What are the symptoms of exposure to blue-green algae? Symptoms from drinking water that contain blue-green algae can include: headaches, nausea, fever, sore throat, dizziness, stomach cramps, diarrhea, abdominal pain, vomiting, muscle aches, mouth ulcers, and blistering of the lips.
For pets, symptoms of exposure to blue green algae toxins include loss of appetite, vomiting, weakness, seizures, difficulty breathing and convulsions. Neurological symptoms, including salivation, can appear within 15 to 20 minutes of exposure. If your animals show any of these symptoms, seek veterinary advice.