All the world seems in tune
On a spring afternoon
When we're poisoning pigeons in the park...

(Tom Lehrer, "Poisoning Pigeons in the Park")

One lovely spring afternoon I went into Boston to get work for the following week from my employer. Fortunately for the pigeons, I left my cyanide-coated peanuts at home. But I did bring my camera, and took plenty of shots of the Public Garden, established in 1837 across Charles Street from the Boston Common.