The article discusses the magnetic properties of diatomic homopolar molecules, noting that the loss in diamagnetism upon molecule formation is proportional to the binding energy. The author, D. P. Ray-Chanduri, presents a table of susceptibility and energy data to support this conclusion, acknowledging the limitations of the data due to the availability of mostly solid and liquid observations and the uncertainty in spectroscopic determinations of dissociation energy. The data suggest a loss of about four percent per volt of dissociation energy, with Cl2 and I4 deviating from the expected pattern. In another section, E. Gwynne Jones explores a model for the nuclear structure of light elements, suggesting that neutrons and protons in the nucleus have quantized spins and orbital momenta. The model is supported by the nuclear moments of the lightest elements, with assumptions including independent coupling of protons and neutrons to an α-particle, quantized proton states, and parallel spins of neutrons. The model accounts for all observed nuclear moments up to O14, but the behavior of protons in the d-shell remains unpredictable due to the screening effect of the p-shell protons. The final section, by E. T. Paris and Heyl, discusses the absorption of sound by porous materials, focusing on the dependence of absorption on the angle of incidence. Experiments conducted in an open-air setting using various materials (Tentest, Celotex B and BB, cotton wool, acoustic board) and frequencies between 1,000 and 10,000 Hz show that the absorption is influenced by both the angle and frequency of sound incidence, supporting Rayleigh's and Paris' angle theory and a frequency theory proposed by the authors.The article discusses the magnetic properties of diatomic homopolar molecules, noting that the loss in diamagnetism upon molecule formation is proportional to the binding energy. The author, D. P. Ray-Chanduri, presents a table of susceptibility and energy data to support this conclusion, acknowledging the limitations of the data due to the availability of mostly solid and liquid observations and the uncertainty in spectroscopic determinations of dissociation energy. The data suggest a loss of about four percent per volt of dissociation energy, with Cl2 and I4 deviating from the expected pattern. In another section, E. Gwynne Jones explores a model for the nuclear structure of light elements, suggesting that neutrons and protons in the nucleus have quantized spins and orbital momenta. The model is supported by the nuclear moments of the lightest elements, with assumptions including independent coupling of protons and neutrons to an α-particle, quantized proton states, and parallel spins of neutrons. The model accounts for all observed nuclear moments up to O14, but the behavior of protons in the d-shell remains unpredictable due to the screening effect of the p-shell protons. The final section, by E. T. Paris and Heyl, discusses the absorption of sound by porous materials, focusing on the dependence of absorption on the angle of incidence. Experiments conducted in an open-air setting using various materials (Tentest, Celotex B and BB, cotton wool, acoustic board) and frequencies between 1,000 and 10,000 Hz show that the absorption is influenced by both the angle and frequency of sound incidence, supporting Rayleigh's and Paris' angle theory and a frequency theory proposed by the authors.