THE MEDICAL EXAMINER. PHILADELPHIA, SEPTEMBER, 1853. YELLOW LEVER IN PHILADELPHIA. Since the August number of the Examiner went to press, our com- munity has been startled by an unexpected visit from the yellow fever, which for upwards of thirty years has been an entire stranger to our city, so proverbial for its cleanliness and health. Fortunately for Philadelphia, this dread enemy no sooner showed its malignant foot-prints on our borders, than the Board of Health, in the exercise of their prerogative, and with a commendable energy, instituted a most rigid investigation in the neighborhood where the first case ap- peared, and with the sanitary besom swept away, it is to be hoped, what- ever nuisances were fruitful in concealing and propagating that poison- ous maierieZ, be it malaria, unhealthy gases, animalcula, fungi, or what not, which are ever so productive of epidemics. To this prompt and energetic action, coupled with the efficient muni- cipal arrangements for preserving the cleanliness of the city, in its streets, gutters, and sewers, together with the abundant supply of water, must be attributed in a great measure the present arrest of the disease, and hence the preservation of the health of its 450,000 inhabitants, from the inroads of a fearful pestilence. Thus far the fever has been confined to a very limited district, em- bracing an area of not more than 600 yards in length by 200 in breadth, bounded by Union street on the north, Second street on the west, Almond street on the south, and the Delaware front on the east, a neighborhood by no means densely peopled; but in many places the houses are confined and filthy, the Delaware avenue defective in surface drainage, the cellars in the vicinity damp and subject to an overflow during the flood and ebb of the tide waters of the Delaware, rendering the neighborhood insalubrious from excessive moisture, and the exhala- tion of noxious vapors, the product of animal and vegetable decom- position. The origin of this fever may be involved in some doubt and obscurity. Whether from a specific germ imported in the barque Mandarin, or the product of her putrid bilge water, or of spontaneous birth in that parti- cular locality where the irruption first manifested itself, still remains a perplexing question to solve. One circumstance connected with its his- tory is clear, viz : that no yellow or malignant fever, or any epidemic, per- vaded our city prior to the arrival of the barque Mandarin. This unfor- tunate vessel arrived here, all well, from Cienfuegos, Cuba, after a passage of seventeen days, on the 13th of July last, and hauled to at a wharf between Lombard and South streets. Six days after, the first outbreak of fever of a malignant type showed itself in that immediate vicinity. From this point it spread itself in about one month over the district above named. It may be proper here to state that the Mandarin came from a port in the West Indies, where “a few cases of small pox and fever” prevailed ; that she lost two of her crew from “ fever” on the passage; that her bilge water was in a very foul condition, and notwithstanding she was detained at the Lazaretto, for cleansing purposes, yet, after opening her hatches and discharging her cargo, consisting of sugar and molasses, the bilge water was exceedingly offensive, and before she was removed by the Board of Health, the stench became intolerable. During the two weeks that this vessel remained in the vicinity of South street wharf, the mean of the thermometer was 79 As already hinted, the first case of suspicious fever happened on the 19th of July, six days after the arrival of the Mandarin, in the person of Joseph Sharp, a young and healthy carman, at South street ferry. On the next day, the 20th, five cases were reported, on the 21st four cases, on the 22d one case, on the 23d two, on the 25th three, on the 26th one, on the 27th one, on the 29th three, on the 30th two, on the 6th of August one, on the 9th two, on the 10th one, and so on up to the 20th—all of them, with the exception of the 21st, being clearly and distinctly traced as having their origin either by a residence in or a direct communication with the infected district. The following is a list of the cases, in the order of their occurrence, up to the 20th of August: Date of attack. Died. 1. Joseph Sharp . . July 19th . July 26th. 2. Geo. Robinson . “ 20th . “ 23d. 3. Thos. D. Koehler . “ “ . “ 27th. 4. G. W. Kerkeslager . “ “ . “ 25th. 5. Mrs. Kerkeslager . “ “ . “ 26th. 6. Charles Burrows . “ “ . “ 22d. Date of attack. Died. 7. Fred. H. Kellog . July 21st . July 23d. 8. Fanny Martin . . “ 21st . “ 26th. 9. J. M. G. Koehler . “ “ . Recovered. 10. Paulina Koehler . “ “ . “ 11. Honora Stanton . a 22d . July 27th. 12. Silas Green . . “ 23d . Recovered. 13. R. N. Campbell . “ “ . “ 14. John Shellcott . a 25th . July 30th. 15. Rosanna McKean . “ u “ 16. John White . “ “ . Recovered. 17. David Murray . u 26th . “ 18. James Markley . “ 27th . “ 19. James Clements . “ 29th . Aug. 1st. 20. Mrs. Mullen . . “ “ . “ 5th. 21. John Haslett . . “29 . “ 2d. 22. Mary Bulger . . “ 30th . “ 3d. 23. Ann Jane Stewart . « « . “ 13th. 24. Mary Williams . Aug. 6th . “ 12th. 25. John S. Williams . “ 9th . “ “ 26. Betsey Stephens . “ “ . “ 13th. 27. Ellen Boland . . “ 10th . “ 15th. 28. James Riley . . “ 13th . “ 15th. 29. Bridget Tibley . “ 14th . “ 22d. 30. Oliver Pitcher . “ 15th .