Respecting the influence of the withdrawal of toleration upon the public health, Behrend concludes there is a greater amount of syphilis. He gives the following list of cases in the Charité:
| Year | 1840 | Females, | 757 | Males, | —— | ||||
| " | 1841 | " | 743 | " | —— | ||||
| " | 1842 | " | 676 | " | —— | ||||
| " | 1843 | " | 669 | " | —— | ||||
| " | 1844 | " | 657 | " | 741 | ||||
| " | 1845 | " | 514 | " | 711 | ||||
| " | 1846 | " | 627 | " | 813 | ||||
| " | 1847 | " | 761 | " | 894 | ||||
| " | 1848 | " | 835 | " | 979 |
He also investigated the average time each patient was under treatment, as tending to show the malignity of the disease, and reports:
| Year | 1844, | men, | 21⅚ | days; | women, | 31⅔ | days; | both | sexes, | 26¾ | days. |
| " | 1845, | " | 266⁄7 | " | " | 428⁄9 | " | " | " | 34⅔ | " |
| " | 1846, | " | 30½ | " | " | 51½ | " | " | " | 40⅞ | " |
| " | 1847, | " | 341⁄9 | " | " | 43⅔ | " | " | " | 38⅔ | " |
| " | 1848, | " | 33⅓ | " | " | 53⅙ | " | " | " | 43½ | " |
These facts are corroborated by the registers of the Military Lazaret. From returns made to the police department by Herr Lohmeyer, General Staff Physician, it appears there were in the garrison
In 1844 and 1845, 735 syphilitic cases. Of these,
| 633 | cases | of | primary | syphilis | required | 17,916 | days | of | attendance; |
| 102 | " | " | secondary | " | " | 4,947 | " | " | |
| 735 | " | " | " | " | 22,863 | " | " |
In 1846, and the first six months of 1847, there were 618 cases:
| 501 | cases | of | primary | syphilis | required | 17,788 | days | of | attendance; |
| 117 | " | " | secondary | " | " | 5,213 | " | " | |
| 618 | " | " | " | " | 23,001 | " | " |
Dr. Behrend states, as the results of conversations and communications with many of the medical profession, and of his own experience: