In 1871, William Benjamin Carpenter wrote a critical evaluation of the Crookes experiments with Home in the "Quarterly Review". Carpenter wrote that although Crookes, his assistant and Sergeant Cox claimed to have observed the accordion float in the cage; Dr. Huggins did not testify to this, and no information was given to whether the keys and bellows were seen to move. According to Carpenter no solid explanation could be given until the experiment is repeated, however, he suggested that the accordion feat that Home performed may have been a conjuring trick achieved with one hand. Carpenter concluded that Crookes should repeat the experiment in open daylight without the cage in the presence of other witnesses.